Proxmox is not using the one from kernel.org, but the Ubuntu kernel (scroll down to see the "Kernel release schedule"):
https://ubuntu.com/kernel/lifecycle
So if Ubuntu would use it, then maybe.
Hello.
Hope that the next LTS Kernel for Proxmox VE will be 6.12. as it is declared as new official LTS kernel, as visible in:
https://www.kernel.org/category/releases.html
Best regards,
Hrvoje.