Hi, I’ve been looking everywhere trying to figure this out, even looking at the arch wiki page, but I had issues with that as admittedly it had confused me.
How do I switch from the proprietary Nvidia drivers to Nouveau? Please and thank you!
nvidia-inst -h and the instructions are pretty clear from there.
Welcome to EOS purple community 
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Thank you for the welcome! I tried running nvidia-inst -n, but it left my computer in a bricked, albeit recoverable state where after trying to initialize the graphical environment it’d just freeze up. I was only able to recover by booting into the terminal and using nvidia-inst to switch back to the proprietary drivers. I am running KDE Plasma on Wayland
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yep nothing works to switch back to nouveau drivers from nvidia installed ones I’ve tried (I’m getting new amd card and wanted nvid drivers replaced by generic drivers before installing new amd vid cd, two diff arch variants I cannot accomplish this goal. when i had manjaro arch though it had tools to do such things like on debain variants but I wanted a more advanced arch to not be so much a noob, and all has been good dealing w endeavor except for this situation.
I did the nvidia-inst -n and it seemed like nvid drivers were being uninstalled but at reboot running inxi -G that stated nvid drivers were still in use… More in depth things tried bricked me and I had to restore to orig..
The nvidia-inst app is not for installing Nouveau which is only part of the the open source driver stack, but for installing the correct proprietary NVIDIA drivers for your GPU (Current or Legacy)!
I myself decided I’d rather go fully open source with my MSI GTX 1050 now, as no major problems or losses are to be expected, if setup right, and won’t have to deal with NVIDIA’s need to be reinstalled with every kernel update and taking so freaking long to do so.
“Nothing works.. : That’s just not true, and doing all the right things does work, and it looks to me you are doing all the wrong things.
I too am using EndeavourOS, KDE, and Wayland not X11, and systemd boot, not Grub, and just got done doing my homework AKA I RTFM’ed and then some: It’s not hard, but there are a few important steps to make sure the NVIDIA drivers are dead, and no longer twitching! Those have to do with your boot loader; the old Grub or newer systemd boot, and whether you are using Wayland or still on X11. The installers won’t necessarily fix those for you and must be taken care of manually by editing certain boot related configuration files and nuking any references to nvidia!
I am working on a comprehensive guide to try to make sure I get it done right the first time, and don’t have to find out anything the hard way after installing them, but that’s going to take some time, so please stand by.