Most of the situations I encounter RSA are in projects where I hope RSA is implemented correctly. I have a lot of Let’s Encrypt certs that are still RSA and my main SSH keys are still RSA. All of these were generated quite some time ago. I understand the problem with projects that implement it incorrectly but I’d hope OpenSSH and certbot aren’t those projects 😥
Not sure what proxmox has to do with this? All this is doing is allowing VMware workstation to run without out of tree modules, it means nothing for anyone else