sure! I use the libredirect addon: https://github.com/libredirect/browser_extension/ works in firefox on desktop and mobile
it redirects various privacy invading services to privacy preserving alternative frontends that are ran by volunteers. by default it only redirects youtube, so you would need to toggle on reddit too. Currently it only uses 1 redlib instance by default, you may select more to be used in the addon's settings.
redlib and other frontends are distinct projects. their project page often has a list of public instances. here is redlib's page: https://github.com/redlib-org/redlib
but you normally don't have to look at it because libredirect updates its instance list automatically
sometimes an instance is temporarily blocked by reddit, if that happens you can quickly switch to a different instance in the addon's menu.
redlib and other frontends usually have some cpnvenience settings, be sure to check them out. but they need cookies allowed, and they are not synced across instances.
I mean with something easier than OBS, but which works on KDE or any other desktop. something like OnTopReplica on windows