I can pay with iDEAL without interacting with a smartphone, using only my laptop and a physical 2FA device provided by my bank. Do you know if this will be possible with Wero?
It's up to your bank actually. Banks (generally) don't want to pay for your hardware key so you need to do a special dance to trigger their compliance bound neural pathways to send you one.
But then the true bliss will arrive the next year with eidas 3.0 or whatever it is called
I am not 100% sure, but I think PSD3 will require that authentication methods without a smartphone are provided:
https://ec.europa.eu/commission/presscorner/detail/fr/qanda_...
Require payment services providers to ensure that all users can benefit from methods to perform SCA which are adapted to their needs and situations and, in particular, that those methods do not depend on one single technology, device or mechanism, for instance on the possession of a smartphone.