A secure hypervisor.
This question pains me:
Would running just a hypervisor on a more secure platform increase the security of its VMs, even when these VMs are hosted on less secure tech, like a remote VPS running your firewall etc?
The Qubes 4.0 philosophy seems to outline a similar idea. I hope someone can enlighten me on this.
https://blog.invisiblethings.org/2018/01/22/qubes-air.html