Hello!
Currently using ED25519-SK (Physical security key backed SSH key) auth for my company's SSH servers; which doesn't seem to be supported.
I would take a look at whatever SK SSH Agent is doing- as they've seemingly figured out a way to make most Pageant/PuTTy-based applications (I.e. FileZilla, KiTTy) work with this key type; but sadly it seems their workaround doesn't apply here.
Thank you for your consideration!
Jon S.