I truly understand it is not working for you. But I do not believe it is a bug that need fixing. LACP bonding is working as it should in both Proxmox 8.2.x and 8.3.x. Even nested bonding where you bond LACP inside a active-backup or balance-tlb...
Thank you Neobin, this was the procedure I used...
cat /etc/kernel/proxmox-boot-uuids
67D6-E50C
ls -al /dev/disk/by-uuid/67D6-E50C
lrwxrwxrwx 1 root root 15 Sep 1 20:06 /dev/disk/by-uuid/67D6-E50C -> ../../nvme0n1p2
mkdir /tmp/myesp
mount...