It’s the same on my side. I’m also running Nextcloud AIO in beta channel (Master-Container version 4.5). It’s sitting inside a Proxmox VM on an Ubuntu 22.04 LTS, which is up-to-date. I installed the QEMU guest Tools and had it running with 16 GB of ram, just like you did.
On the Proxmox interface it says that it’s consuming almost 15 GB ram, but when I run htop in the container it’s a lot less - hardly 3 GB.
I also tried to switch off the ballooning function and set it to 8 GB. The behavior was the same. In the Proxmox UI it’s almost at 90% Ram usage, and inside the container it’s hardly 50% of it.
As you see this is the graph showing 16GB at the beginning and 8 GB RAM late on:
Either way, it’s using almost all of it the whole time.
this is htop insie the VM with Elasticsearch running:
