They appear to be posting from sopuli.xyz; they shouldn’t need to.

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This is coming from an American, so this explanation is going to be a bit U.S.A.-centric:

The United States of America is federated under a central authority to facilitate cooperation, trade, and freedom of movement; this is why we call the central government the federal government. Canada, among others, is also federated.

Lemmy and the like are federated without a central authority, thus having no higher authority within this framework enforcing rules they must not infringe. Each member makes its own rules in its own territory, choosing whom they wish to federate or cooperate with. When moving to another member, or even non-member, like member states or territories, you need to move to a new address within the member you wish to join.

*alleged sandwich

You may want to check out the Matrix protocol and implementations. There exist bridges and other communication networks or protocols.

Not sure, but could one legally advertise or sell it as a sandwich(in, say, the U.S.A.)?

This gives me the impression it is trying to convey that the front-end hides a thinly veiled mess from the user — showing only what the developers want users to see — not what it is actually like to program in each role. It appears to me this is meant to be the same scene from two perspectives, not two different situations altogether.

It is not my intention to be annoying. I apologise in advance to anyone that sees my analysis as sucking the fun out of something intended to be lighthearted and saying anything a waste of time.

Some games through Steam I have played on Steam Deck(in no particular order): Cassette Beasts; Wizard of Legend; Skyrim; Tunic; Bugsnax. I have also played a few from Flathub through the Discover application. SuperTuxKart can be fun. Minecraft through Prism Launcher with a controller mod is decent enough, although I would prefer to have mouse and keyboard available.

I’m not sure what my favourite is, but Screen Cheat, of which may be found on Steam, can be fun. The gimmick is that it is a local split-screen shooter in which it is practically required to look at others’ screen to know where they are as everyone is invisible otherwise, aside from projectiles.