If you want to get into running a home lab, this world probably be a nice start. So throw proxmox on it and host all the services you want (in containers or VMs). Media server like jellyfin, maybe a nextcloud, storage/Nas services, automate your home with home assistant.
It has a relatively large amount of memory for that generation of system, but also will probably not exactly sip power for the performance your getting. So if power is expensive where you are, think twice about it.
Depends what you want to do. If you want only docker containers, it’s the wrong tool. If you want to run a mixture of VMs and LXC containers, it’s literally a management interface made for it. So it’s pretty good at it.