Honestly, the best thing I'm doing to pass time since corona is to listen to some music. Not for itself, like if i have to do something in my Flat, it always comes easier when i turn on some music before starting. I read recently that music can help the brain with concentration issues or just setting a focus on something. I tried it and it works for me.
If you are interested, the article about concentration enhencment with music is in the Link below (the article is in german but you can use Deepl for the translation: