@paxsu and others interested in this: I found the same problem and was surprised, as hovering over links (to see the URL in the status bar at the bottom) had indeed worked in Opera for me, just moments before it stopped working. That's when I came searching for any solution and found this post, among others.
Here's a workaround that's worked for me: all I had to do was click on some text in the page (not a link, I mean) and then hit the tab key. Suddenly now hovering Did show the URL in the status bar, and of course tabbing to a link Also shows the URL.
While I can't figure out what makes it suddenly Stop working (sure, could be some extension, or could just be a bug), at least discovering this has allowed me to immediately see the URLs again, which is indeed important for safety sake. Hope that helps others.
Note that: This solution only works for any Windows 10 and I don't know about other Operating systems because I don't have one.
First of all, I'm not a native English speaker so sorry for my grammar.
Make sure that you don't uninstall the browser or any other app from your device. Leave it just like as it is. For me, this issue is caused because I was using Opera GX in very minimized window and also I changed my Minecraft resolution. I think you might know that when you select the app from the taskbar and press F11 for the full screen mode, it works like it should in the windows mode but for the non full-screen it doesn't. Okay, so now lets start solving the issue.
Make sure you have these settings set to true (checked). You can uncheck them in the future if you don't like it but for this solution, it's a must. (I didn't tried other solutions because this solution worked in the first try for me)
Then when you snap any windows to either left or right side of your screen, your machine must show other tasks like this and select your browser.
When you did that, minimize the other window and maximize your Opera window.
Done. The problem is solved and now you can freely use your browser without any problems in the maximized (non-full screen) mode.
Everything else must be self-explanatory. I hope it works for you too.
@porolife Usually means something is deleting cookies, either you've set Opera to throw away cookies on exit or some external program is deleting them. One such program would be CCleaner - if you use that then clear the setting for removing cookies.
right click on your image and chose "copy link image"
go to https://www.youtube.com
press 3 keys ctrl + shift + C at the same time to open dev tool.
right click on any thumbnail image on Youtube to open a popup window, then chose "inspect element"
You will see a piece of code covered in blue like this
double left click on the line "https://........" and delete it
paste the link of the image you copyed in step 1 between " " like this then press Enter
the thumbnail you choose will look like this
Step 4 Ctrl + D and find the image you want to change by left arrow and right arrow and click Done
Goodluck and sorry cuz my English is bad😅