Don't autoplay/unpause when I'm in the tab. / Don't autoplay. Ever.

⚬ PROBLEM:

When switching back to a YouTube tab, the previously paused video continues to play automatically.
This seems to be a long-standing YouTube "feature", but it only recently started torturing me with it.
It's annoying and I hate it. (It's a very hateable feature, alright?)

⚬ SOLUTION:

I'm looking for some way to just disable autoplay completely - except when it concerns any kind of playlist.
YouTube should never autoplay single videos, and it should never automatically unpause, ever.
I think autoplay is only good for playlists (including the temporary ones), but nothing else.
If you could implement that in some (cleverly optional) way, I think that could be a helpful thing.

⚬ ALTERNATIVES:

Chainsaw? Angle grinder? Prince Albert?
(Gemini has not been helpful in this matter either.)

⚬ RELEVANCE / SCOPE:

I'd reckon that someone who dislikes autoplay also dislikes autoplay when switching between tabs.
I haven't found a reliable solution to this, but maybe I'm not the only one who's annoyed by it?

⚬ "SIDE EFFECTS":

None.
Obviously, like everything else, this should be optional.
A kind of "master switch" to turn off autoplay/auto-unpause, with an (also optional) exception for playlists.

⚬ CONTEXT:
//
Thank you!

No. Thank YOU, for everything you've done so far.

Start by reading the issue's requested autoplay and auto-unpause behavior, including the optional playlist exception, then locate the extension's existing playback settings and tab-switch handling. Done should mean an optional master control reliably prevents autoplay and automatic unpausing while preserving the specified playlist behavior.