I have a big enough house to be able to put this machine somewhere out of the way but there are plenty of cheap server gear on classifieds. I paid ish 300 euros for a 32 core machine with 40gb ram. I can host all the things without it even breaking a sweat.

Probably uses a lot more electricity, but I haven’t really noticed it on my power bill

I swapped to Linux for similar reasons many years ago. The initial idea was to hedge and get familiar with it so I had peace of mind. I ended up staying in the Linux sphere for most of my devices , except for my music production machine that still run windows.