Hello,
well, there is indeed a difference between walking on laminate (which we have in the basement rooms) or on real wood parquet (attic floor except the bathroom).
Basically, it really seems to be the case that carpet is actually much better suited for house dust allergy sufferers than the common opinion suggests.
Our vacuum robot "Dobby" regularly takes care of the already described dust-lint balls (which can actually be extremely annoying), so we no longer have any problems with them.
Ultimately, I think that, depending on personal preference, carpet, parquet, or even tiles can be laid in the bedroom with a clear conscience – with underfloor heating, there should no longer be any problem with "cold feet" on any of the mentioned floorings.
Regards,
Dirk