"I would love to see Proxmox adopt a more conservative kernel release strategy for production environments, while continuing to deliver critical security fixes promptly."
None forces you to apply each and every updates, but if you are too lazy...
I like and appreciate the way Proxmox handles kernel updates and vulnerabilities. They backport vulnerability pathes from other branches into 7.0 way faster than other vendors.
Proxmox also informs ways to mitigate without reboot when available.