I think that depends on if the VPS charges incoming and outgoing external connections, some only charge outgoing. From VPS to browser would be outgoing, from your home instance to VPS would be incoming.

Someone recommended https://plane.so in another thread, I tried it out and it looks promising. I haven't tried to self host it yet tho, and trello import isn't available yet: https://github.com/makeplane/plane/issues/1251

This video shows some of the reasons why it became that way: https://youtu.be/YThelfB2fvg It was quite interesting to watch