Had to format my post, since the mobile client I posted it with did not apply the formatting that I did :)
I am currently running a minecraft<>matrix bridge and a telegram-bridge. I used to host those bridges for public use (3k+ users), but that was hard since it used up so much hardware.
Now it is only for family and friends, and that is working so much better :)
Indeed it is!
I remember a big change in resource-use between 1.18 and 1.22. And it is even less now.
My server has joined many big rooms and it is doing great on 1 core and 1gb ram (even thou I have allocated more to it).
It's awesome. I was torn between Joplin and Vikunja, but since I'm using Logseq for my notes, I utilize Vikunja as a quick todo app, which helped me to stay organized. Working great, I auto-update it using Watchtower and never had any issues :)