What works on a 32bit system?

Recently got a Chrombook for school, learned about flatpak trying to find a way to get myself the desktop version of firefox. Everything I’ve installed so far seems to be incompatible with my 32bit system, so I’m popping in to ask if there’s anything at all I can even get from this.

Both i386 (Intel 32-bits) and arm (armv7 32-bits) have been discontinued on Flathub.