I used to work for a huge multinational conglomerate you've definitely heard of. I agree - pretty much anything I did while employed there could be considered competing, especially since nobody (beyond maybe a couple of executives?) knew everything the company was involved in.
https://www.joelonsoftware.com/2016/12/09/developers-side-pr...
2. Please, calm down and don't rush to judgement. You'll be better for it.