I understand they have different purposes, but one (container manager) seems far more suited to the typical things that people want to do in their homelabs, which is to host applications and application stacks.
Rarely do I see people need an interactive virtualized environment (in homelabs), except to set up those aforementioned applications, and then containers and containers stack definitions are better because having declarative way to deploy applications is better. Self-hosting projects often provide docker/OCI containers and compose files as the official way to deploy. I’m not deep in the community yet, but so far that has been my experience.
Additionally, some volume mounting options I wanted to use are only available via CLI, which is frustrating.
So I don’t really understand what value proposition proxmox provides that has causes homelabs folks to rally around it so passionately.

Having a one-stop-shop that can run VMs is handy for those last-resort scenarios where using an application container just isn’t possible, but thankfully I haven’t run into that yet. It doesn’t seem like OP has run into that yet either, if I read it correctly.
I’m not deep into my self-hosting journey, but it doesn’t seem like there are that many things that require a VM for hypervisor 🤞