Mentioned Ubuntu since its backed by Canocial and fairly popular desktop distro. Mentioned Fedora instead of RHEL because RHEL is mostly used for servers and maybe in schools or high security environments.

You could consider Ubuntu, Red Hat Linux and Oracle Linux to be about as standardized as Windows or Mac. These distributions are usually what larger enterprises use for servers and sometimes for software development, IT operations etc. These are about as standardized things get in the linux world.

Now when it comes to using Linux as daily driver there are so many options out there and none of the distributions have really yet hit the mainstream. For my understanding it’s been long been battle between Ubuntu and Fedora with their derivatives but with SteamOS using Arch Linux would not be surprised if some sort of Arch based distribution with maximum Proton combatibility would gain popularity.

Arch itself seems too minimal to be considered as “standardized” operating system.

According to the big tech its ok if you’re training large language model with it.

With hundreds of games, updates, dlc, mods, merchandice, videos and streams appearing each passing day gaming communities would get flooded by spam if no such rules would be in place. If you want to advertise on a commercial platform then you should do so through official channels.

Generally lemmy and reddit communities favor more organic content like for example solo game developer could ask for a feedback on piece of art of game mechanic they’ve implemented to their game in gamedev related communities. They could also participate to community events like screenshots saturday, share your progress friday or anything similar.

Now /r/gaming and /r/pcgaming are probably huge communities that are mostly about discussing gaming news, articles and just general topics around gaming. These communities are probably hard to moderate as is and allowing people to self promote there could lead to flood of indie or mobile game ads, streamers and youtubers trying to get more views for their vods or streams, etc which could really annoy the community.