None of those sheets
except for Annoyances should be applied globally.
I don't guarantee Annoyances won't break other things, but I do guarantee that the others will.
Assign the to a nonexistent URL or domain initially, or disable them.
If you've got specific bugs with the Annoyances sheet ... I may be able to address them.
My usual first-stop debugging tools are adding either an outline or background colour to an element:
outline: solid 2px red;
background: #faa;
... which tends to show what rule(s) are being triggered. If something breaks, add those rules, and disable the "display: none;" one.
I'm also finding that the shift to "display: flex;" styles is breaking some of my assumptions. It's no longer safe to presume that everything is displayed as one of block, inline-block, or inline.
Position directives are also problematic: initial, static, relative, absolute.
That said: I've evolved those styles over a few years, and they tend to work reasonably well. Some nursemaiding required.