You should seriously consider the advice from others here to either switch to a Mac or find a certified system config for Linux of ADSK.
Installing Linux does require a bit of OS admin understanding. It cannot be solved alone by ChatGPT throwing proverbial mud at the wall and see what sticks.
A lot of those commands ChatGPT gave you are not invalid, but they come with a lot of context you need to understand. Some may be for different versions of Linux, some may make assumptions about hardware you have, etc. And as you saw, without that context you’re playing with fire.
When you end in a boot loop, there is a way out. You can interrupt the grub boot loader, edit the line and add ‘systemd.unit=multi-user.target’ to it and then boot. It should drop you into a single user command line where you can fix what went wrong, but then more so than ever do you need to know what commands to type, because you’re in the equivalent of a Mac OS recovery shell.
Neither 8.5, 8.7, or 9.3 are the answer, and all of them are the answer, for different reasons that are hard to pinpoint without sitting at your system and systematically working through it.