@Artie Ok. It just updated to 134.0.5954.56.
We'll see what happens. But as I mentioned, Opera Air did it too. 
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@Artie Ok. It just updated to 134.0.5954.56.
We'll see what happens. But as I mentioned, Opera Air did it too. 
@burnout426 Hmmm. My Opera is saying it's up to date with the .46 version. I'll give it a little time.
@burnout426 Thanks. I didn't know about the shift+esc trick. I'll try that next time. This is an ASUS "gaming" laptop with 16GB ram.
I'm not sure how to interpret the "crashes" page.
BTW, Opera Air did it also last night. It's important to note that this is a new phenomena. My laptop hasn't changed, so I doubt it's a computer issue. I used to be able to have several dozen tabs open in one workspace, and several others in other workspaces. I keep my emails, calendar, etc, open in their own WS.
I'll try to get a crash report next time it happens. I have crash reporting turned on now in both browsers.
@burnout426 I can't really list dozens, (100's?) of websites. It's not any specific websites. It's just the fact that I used to be able to have many open, in several workspaces, and now it crashes if I do the same.
I think the bigger question is: Why is Opera "running out of memory?" Might I have some limiting factor set wrong in Windows?
@Artie Doh! I found it. I had to turn on "synchronization" in both browsers. 
I use both of these. How can I sync them, so a bookmark in one shows up in the same folder as the other? And vice-versa? Thanks all.
Artie
@burnout426 This is "regular" Opera on a laptop. I never do YouTube in Opera. I use Vivaldi for that. I never use Google Sheets. Just regular websites, like some guitar and/or music forums. Tech articles, food articles. Email, calendar, etc.
And like I said, in the past, I've dozens of tabs open, with no problem. This is a fairly new phenomenon. I had crash reports turned off. It's on now.
I'll see if I can post the version screenshot.

I used to be able to have multiple, ( a dozen or so), tabs open, across multiple workspaces. For the last few months, If I only have a few open, Opera will tell me that the page is "out of memory." It shows me a "Reload page" button. I hit it and Opera crashes completely, losing everything I'm working on.
This is the error that will bump Opera from being my default browser.
@leocg By golly, you're right. Just by coincidence, I have a bunch of tabs open that don't support it. Found one that does, and there's my little "reading mode" book icon.
Thanks.
Did they do away with this? Did I miss the memo? I no longer have the little "book" icon in my address bar, and it isn't under [b]Menu>Page[/b] either. It also doesn't appear to be an option under "opera://flags/" either.
This is the up to date Opera One. Anyone know about this?
Sometimes, I'll have multiple tabs open, in several workspaces. Then, for something unrelated to Opera, I want to restart my computer. Is there some way I can save that entire session, so that when I reopen Opera, all the tabs, in all the workspaces are restored?
Thanks all.
(This is just regular Opera.)
As it is, there's a red dot on the sidebar workspaces to show unviewed content. It would be nice if maybe the dot would change to another color, (blue, maybe), to show that there's still content in that workspace even though you viewed it, but not closed the tabs.
I've added a "shopped" screen grab as an example. Red dot shows unviewed content. Suggested blue dot indicates viewed, but tabs still present.

@leocg Thank you. I didn't search well enough.
For awhile now, I've noticed a little odd "tab" behavior. When I mouse-over a tab, to close it, there's no little "x" to click. I have to slid the mouse pointer over to an adjacent tab, then slide back, for it to appear.
Not a big deal, but still odd. Anyone else seeing this?
Is there a Hotkey combo to switch between Workspaces?
Thanks all.
@iamawais55
I still love Opera on my desktop. Not so much, on my phone. 