Extremely common thing to be into, too, but then the main thing that puts me off with foot people is the same thing that puts me off with any fetishes; creeps who don’t know boundaries. If your thing is feet, it doesn’t matter that it’s the summer and everyone is wearing flip flops, don’t bother people or act creepy. And online, don’t dm girls with demands for foot pics. The worst people in a fetish community are always the first people anyone see, and they always give the rest a bad name.
The DRM is optional for use by the devs. Rimworld is one game I know doesn’t use it, you can just zip the entire thing up and put it somewhere else and it’ll run fine. It’s still a launcher. But the only better alternative to a launcher is plain installers to download and hold onto like GOG provides as an alternative to its Galaxy launcher.