https://www.qubes-os.org/news/2021/03/04/qubes-4-0-4/
New Qubes release!
tl;dr: Qubes compartmentalizes your machine into a bunch of VM's, so a web browser exploit can't steal your bitcoins or backdoor the software you maintain. I _highly_ recommend it, and have been running it on all my non-server machines for years.
I actually just installed the release candidate for this release a week ago on my main desktop, and it got my new NVME drive working reliably finally. Probably due to the upgraded Linux kernel in dom0. 😂