I gotta look into Portainer/Proxmox.

I have to say though I do like the convenience of just hitting install in an "app store" UX and everything else being automatic.

It's kinda like Arch vs Ubuntu. Can I use Arch? Absolutely. Can and have.

But do I prefer to not have to dive into config files whenever I wanna change some settings? Also yes.

And especially when it's something that holds money and transmits it - that's something I'd rather have "just work" with minimal config.