I programmed my roccat/turtle beach kone xp air on Windows and have been using it standalone on Linux since.
It has four side buttons, two buttons to switch dpi and plus a fifth at the bottom, all can be freely reassigned. Profiles can be switched at any time and are also stored on the mouse itself. I use the rgb to differentiate between them (I only have two)
You can connect it with its very smooth cable, wireless dongle or Bluetooth with no issues
Only downside is the price when buying new, I got a mint one from a collector (didn’t know those existed) for about 70 bucks. The wired version might be more affordable.
Would that even make sense, economically and especially environmentally this can’t be desirable.
If anything, you could maybe order straight from the source in China or wherever it’s made, given they stell it there. Hauling stuff around the world twice seems excessive. Also if the goods were made in the US shipped to Europe and then back to e.g. Canada it would be even more nonsensical probably? So knowing whether something is exclusively made in the US might be important, too.
Europe has some national and international online stores, however, they usually don’t ship across the Atlantic to my knowledge.
You can try though: Alza should be Alza.cz but .de works too Bol.de Otto.de I don’t know others by name but those are some market places