"Seamless integration" in this case doesn't read as statement about how well it works to me. It means the applications from the windows appear on your Linux desktop without the "seam" of a full windows desktop around them.
I do tend to let tabs accumulate, but then I turn off my PC at the end of the day and let all tabs fall into the void.
I like to start the day with a blank slate. Which seems to be such an uncommon thing to do that I couldn't convince FF on my last few Linux installs not to restore tabs when reopening. I've changed the obvious settings for it, I've set the flags in about:config, I've even completely disabled crash recovery and related features. It would still always reopen the last session
Mac mini M2 user with safari here: The website causes 10-20% CPU load doing absolutely nothing. The spotlight effect also doesn't seem to work as intended. As long as the mouse is moving, the spotlight just barely moves in its direction. Then, when the mouse stays still, it suddenly jumps towards it. It makes the website seem a lot more laggy than it probably would be.
On chrome, the spotlight effect looks better, but we are up to 50% CPU usage.
Have you ever executed a script you didn't write? It's handy to have a runtime where you can see what a script can do from its permissions.
I'd generally like to see more languages with APIs for untrusted sections. If I know my program reads e.g. paths from untrusted files but should only ever access it's own folder, it would be nice to have a way to ensure that I can't get tricked into accessing something outside of it.
Actually, the use case of running other people's scripts is pretty neat. I audit pretty closely the code I use in my projects for work (the use case I was thinking of), but having Deno as a scripting platform, and running a script someone shared is a pretty neat place to apply the network/disk limits.
Using bar graphs just showing the factor of improvement is kinda baffling. It took me a bit to understand how to read it, which is the last thing you want in a diagram.