Hello I play with it on the ps4 and it works smoothly I think it's the same with the ps5 - but I can't guarantee it

In this case, we will refer you to our Galaxus Assistant, which provides direct contact options so that your order can be checked and you can be helped accordingly. https://www.galaxus.de/help

no unfortunately not

Es fehlen halt die MAC spezifischen Tasten. Ansonsten siehe Kompatibilität https://www.logitechg.com/de-ch/products/gaming-keyboards/pro-mechanical-gaming-keyboard.html

The keyboard has a small shift key. Attention: It has a German (Deutschland!) keyboard layout.

Unfortunately, we have no information whether there will be a CH version. According to the manufacturer's number, the GL Clicky is installed in this version.

No, the manufacturer itself only builds/sells the black version of this keyboard with GX Blue switches. (Source: https://www.logitechg.com/de-ch/products/gaming-keyboards/pro-mechanical-gaming-keyboard.html)

DE = QWERTZ, with accents : ö, ä and ü (Germany and Swiss German) CH = QWERTZ, with accents : é, à and è (French-speaking Switzerland) This keyboard is DE.