Other than going on Lemmy lol.
What I have done throughout the years (as an office worker) is the following:
- reddit/lemmy
- chess
- selfhosting/homelab
- chores/planning
- writing
Getting tired of all these, looking for something to do when I have nothing to do but still looks like I am active on Teams/online.
Also, on the difficulty note, I find people around me tend to enjoy helping. Its become a bit of a ritual in the evening for my partner to help me with tough clues. Great for car rides too (passenger on the phone, obviously)