Fedora 34 alpha have less critial issue than ReactOS have.LMH1 I am beginning to realise that you don't know what you are talking about. If you can't be bothered to investigate for yourself and find out the difference between alpha and beta software and due to this don't understand the implications of running Alpha s/w, then you aren't worth giving support to.
But did its have list what know works or not? So its possible to find it out?Fedora has a stable Linux kernel at its core and thus is at a far more advanced state of development than ReactOS, meaning their developers have time to play with whatever they like.
https://reactos.org/wiki/Community_Changelog-0.4.15
That did not tell much, its hard to find compare with 0.4.13 https://reactos.org/wiki/Community_Changelog-0.4.13