Don't do things just because twitter persona says so. Is there an independent security audit of Qubes that checks its factual capabilities in security?
> Never lead to escapes
Escape is the highest form of security failure. I'm talking about data access and exfiltration.
Do you store all your important data on a VM with no internet access? Even Qubes users don't, it's hard to work with. Then it's Firefox/ kernel bug away from being accessed remotely.
XSAs are publicly known vulnerabilities discovered by someone who wanted to make it public and later were published by the Xen developers. There very probably are publicly unknown vulnerabilities, both in HW and Xen, discovered/created by people who want to profit from exploiting them. There are whole teams focused on this kind of work, payed by states and criminal-enablers like NSO.
> What is restrictive about Qubes?
No GPU acceleration for video in a VM, legacy OS on dom0. Xen development in support of modern CPUs has fallen behind, didn't even boot on modern Zen X570 platform last time I tried, dysfunctional nested virtualization, using KVM from Linux does not work, can't run Android Studio with phone emulator.
