Switched to Firefox as soon as Chrome disabled UBO. Unfortunately I found that after a day or so of Firefox being open, if I have more than a few YouTube tabs open, the YouTube interface begins to lag. I had read that the issue had been fixed but apparently not. Switched to Brave and things are going well so far.
In Firefox you can right-click and Unload Tab which leaves the tab as one you can return to but unloads all the JS (including Service Workers) until you return to it. Firefox will auto-unload tabs as you open more tabs, but for sites like YouTube that do a lot of cross-tab chatter and have mega Service Workers trying to do background stuff (they don't need to) all of the time, it's nice to be able to Unload Tab directly from the right-click menu.
