Many label printers (especially the older ones) use a proprietary text-based language, and accept plain vanilla text input via their serial port. They don’t use a printer driver as such. To use one of them you have to learn their command language (usually pretty simple) and write a text file describing what you want to print using that language, and upload the file to the printer.

Start with the printer documentation and go from there.

Newer printers need linux drivers. Support varies.

I play Skyrim SE on Linux (Via Steam) and currently have about 30 mods on it, and it runs fine. I have run Oblivion Remastered (no mods) and have experienced occasional crashes, but it is at least playable.

But when could they run the commercials?

Any. Very few modern buildings can be said to have any style at all. They are just functional blocks.