Question about Kobo Clara HD

For me it's all good. I can read digital books from my local library (Geneva) by the way for my old Mac ;-)

I can't read my library (Biel) on the common e-bibliomedia platform via ibooks. Looking for it, there is an incompatibility with the Adobe Editions DRM software since 2017. The only solution is to use an old version of Adobe (v3) which is incompatible with my Mac. To be avoided, if one frequents the Swiss libraries!

According to the information found, yes.
For the rest, unfortunately, no idea, sorry.