I just tried to run the server on different machine 10700KF with also Ubuntu Server 20.04, but without Pterodactyl (docker running) just pure SteamCMD download and run and it is also saying
2022-11-10T16:35:02 437.946 INF Time: 4.21m FPS: 20.00 Heap: 3224.8MB Max: 3727.7MB Chunks: 9 CGO: 0 Ply: 0 Zom: 0 Ent: 0 (0) Items: 0 CO: 0 RSS: 9184.7MB
8/16 cores 20G free RAM for the server. Isn't that wierd that it is exactly at 20.00 ?