I am sorry for not following your protocol for posting to this forum. I should have looked for similar posts, but I need to get to the bottom of this issue.
I have been running Opera for quite some years. All seemed to be going well, until it started slowing down and taking too long to load pages. I thought it may have been the whole PC, but when I used another browser , it did not lag or take so long to load. I want to do one of two things.

1. try to reload or re-install Opera with a fresh install, or
2. go to another browser and import my saved bookmarks or speed dials from Opera.
   The main problem is that I have about 270+ speed dial tiles that I have tried to export either to the other browser, or save somewhere while deleting all of the Opera application so I can do a fresh install. It seems so convoluted, trying to located and export, or located and save the files somewhere else.
   One of my questions is, what is the difference between a bookmark and a speed dial? Are they the same?
   I really liked the convenience of the speed dial tiles on the home page, but if the various web sites are slow in loading, I need to do something about that. I am on Opera build 85 right now. If anyone can give me some direction, I would appreciate it so much.

@leocg I built my current PC sometime in 2015. I don't know why, but I believe Windows designated a virtual name for it. It is DESKTOP-866G***. That is not the problem. I have been running Opera browser as my main browser. When I checked my bookmarks in the Opera settings, it shows the DESKTOP-866***, but also shows another PC virtual name as DESKTOP-H466***. The confusing thing is that most of all of my bookmarks and speed dial tiles, are in this H466*** tree in Opera settings. Did Windows create this other designation, or did Opera? If I search in file explorer for Desktop 866***, I get some files designated as program files, but when I search for the other name (H466) I get nothing. Is there a reasonable explanation for this? Did Opera create this designation to house those bookmarks/speed dials? I don't know either. The problem I am having is that I don't want to lose all of those bookmarks if and when I decide to switch to another browser (Edge, or Firefox). I have already tried to export or import them, but Opera does not play well with the other browsers. Any suggestions? Yes, I have tried to follow the instructions given, but they are so confusing that it makes me sleepy and want to give up.

@leocg I do see the list of speed dial/bookmarks in the bookmark section of the side toolbar in Opera. I just want to find the file in File explorer so I can copy it, in case I have to re-install Opera. I did see a file named bookmarks in
C:\ Users\XXX\AppData\Roaming\Opera Software\Opera Stable. I made a copy of this, just in case.

@leocg I built my current PC sometime in 2015. I don't know why, but I believe Windows designated a virtual name for it. It is DESKTOP-866G***. That is not the problem. I have been running Opera browser as my main browser. When I checked my bookmarks in the Opera settings, it shows the DESKTOP-866***, but also shows another PC virtual name as DESKTOP-H466***. The confusing thing is that most of all of my bookmarks and speed dial tiles, are in this H466*** tree in Opera settings. Did Windows create this other designation, or did Opera? If I search in file explorer for Desktop 866***, I get some files designated as program files, but when I search for the other name (H466) I get nothing. Is there a reasonable explanation for this? Did Opera create this designation to house those bookmarks/speed dials? I don't know either. The problem I am having is that I don't want to lose all of those bookmarks if and when I decide to switch to another browser (Edge, or Firefox). I have already tried to export or import them, but Opera does not play well with the other browsers. Any suggestions? Yes, I have tried to follow the instructions given, but they are so confusing that it makes me sleepy and want to give up.

I am sorry for not following your protocol for posting to this forum. I should have looked for similar posts, but I need to get to the bottom of this issue.
I have been running Opera for quite some years. All seemed to be going well, until it started slowing down and taking too long to load pages. I thought it may have been the whole PC, but when I used another browser , it did not lag or take so long to load. I want to do one of two things.

1. try to reload or re-install Opera with a fresh install, or
2. go to another browser and import my saved bookmarks or speed dials from Opera.
   The main problem is that I have about 270+ speed dial tiles that I have tried to export either to the other browser, or save somewhere while deleting all of the Opera application so I can do a fresh install. It seems so convoluted, trying to located and export, or located and save the files somewhere else.
   One of my questions is, what is the difference between a bookmark and a speed dial? Are they the same?
   I really liked the convenience of the speed dial tiles on the home page, but if the various web sites are slow in loading, I need to do something about that. I am on Opera build 85 right now. If anyone can give me some direction, I would appreciate it so much.