I've tried lot of selfhosted note taking apps. A lot.
While Trillium is polished and efficient, I find that the PWA makes the UI hard to navigate and read. It deserves a real app, optimized for smaller screens.
I haven't really used obisidian as it is a bit overkill for my use case anyway. So not using trillium wasn't such a loss.
I ended up using bookstack for my knowledge base, and flatnotes for everyday note taking.