The dip in usage comes just as Microsoft has been forcing full-screen ads onto the machines of customers running Windows 10 to encourage them to upgrade.
Yeah no shit! When my computer does full-screen, disruptive things that I didn't tell it to do, I figure out how to remove that malware. I've been off Windows at home for about a month now, thanks Linux Mint! Getting some games to work has been challenging, but most things have just worked and quite a few work much better!
Performance is up overall, and my confidence that my computer isn't running a bunch of secret ad and spy ware is way up. Hardware like my gamepad and microphone would randomly disconnect and have issues on Windows, all working perfectly now.
Unfortunately I'm still deep in MS land for work, but there's almost a comedic quality to it. Everything's very slow, everyone has constant issues with Teams, or Office online, or Dynamics, or copilot shoving it's tendrils into everything. Watching businesses struggle to keep operating in the face of Microsoft's inadequacy is like being a mechanic watching a motor grind to a halt because the owner/manufacturer replaced all the oil with syrup.
Like yes, it's my problem to fix, but I'm just glad it's not my car.