I use LogSeq to organise all my notes. My group meets in-person, but I use Foundry to put background art, NPC portraits, etc. up on a screen, as well as to manage any NPC character sheets.
It may stretch the definition of 'tool' a bit, but the other thing I do is set up my laptop with four desktops/workspaces (notes, Foundry, music, rules) so I can switch between them with Ctrl+Windows+Left/Right. It's a minor thing, but I am constantly surprised by how many people I run into who don't know that you can do it. Switching desktops feels like much less friction to me than Alt+Tabbing between windows for some reason.
Yeah, it works well enough. I haven't had any issues, at least. On Linux, I prefer something along the lines of Workspace Matrix to get a proper two dimensional layout, but on Windows, the built-in workspaces have been at least sufficient for game night and don't require any additional setup