If you want to help and already played with Qubes OS and Linux kernel (i.e.: not for novice users!), read the posts from the mailing list, and try the new kernel:
[xxx@dom0 ~]$ sudo qubes-dom0-update --action=upgrade --enablerepo=qubes-dom0-current-testing kernel kernel-qubes-vm
If all works, you’ll get a 5.4.78 kernel.
It’s important because it’s an opportunity to get a newer default kernel (in Qubes 4.0.4), so more supported hardware, therefore more simple install for all users.