you had enabled "render region", which means blender will only render a small selected area, which is probably what that yellow square you're seeing is (since the area is very small, and blender highlights it in yellow)
to disable that, you can go into view in the sidebar and uncheck "render region", or just hit CTRL+ALT+B
if i get some spare time i'll throw some rounded corners on some of my recent web designs that i'm allowed to show, though i've thought about it more and i don't think that's my main issue with it. i feel it makes it feel like websites are more so just that, little pages in an app, when they can be, and often times are, so much more. i like when they can take their whole screen of space, without any borders, cut edges, anything like that, which is why i personally use a theme which even hides the tab bar behind a hover. i like to treat websites as apps in their own right, and putting them into a little box just doesn't sit right with me. if it didnt have those borders, and were just rounded based on the normal windows border radius, i'd likely be fine, but i feel this puts too much connection between the browser and the site
i've designed a few websites recently which really favour sharp corners, and when one of my sharp objects randomly has a rounded corner, when none of the others do, just because it happens to be in the top left corner, in my opinion that's a bad thing?
apart from that it ruins any website's unique design by forcefully shoving it's rounded corners into it, or making anything in the corner look odd
also made it way more accessible to newcomers, i tried to use it with 2.79 but i just couldn't get a hang on the UI, 2.80 really made it usable for me and many others
eh, i dunno, i've ended up on blender docs for 2.7 and such loads of times through google and had to go search for the same page on the modern docs
i've been using blender since 2.8, because of 2.8, and i can't see much of a difference especially layout-wise from 2.8
you sure you're looking at the right docs? https://docs.blender.org/manual/en/latest/ this seems pretty up to date to me
yep, it's called rate limiting, any sane website will have this
beyond one or two mistakes of my own doing, where i didn't read or think before running a command, linux is perfectly stable compared to windows for me atleast!
if you're on windows it cant really theme that well, but if you're on linux you can use qt6ct to retheme it to look a bit newer, i'm using the "kvantum-dark" theme
may I recommend Strawberry on desktop? It's really nice to use with large collections! https://i.imgur.com/ViOJK6B.png
love how people complain about inconsistent ui, so they fix it to be consistent, so they all use this temporary flag to have that inconsistent old ui back, so they remove that and now everyone's pissed...