GCam requires the Google Photos app to be installed to load previews.

One way to fix this without installing it is to use GCamPhotosPreview. I use it myself and it works as expected

like many have already said, a custom ROM is a pretty good option. Aside from LineageOS, I’d recommend DivestOS which is a fork with some security and privacy enhancements

Mull, element, bitwarden

same for me when I first installed it. Had to install it on my PC to get somewhat used to it

Krita is available on fdroid if you want to give drawing a try

Neo launcher + arctic icons dark