I usually insist that personal and open source work done outside of the product areas I work on are not company owned. Otherwise if I work on financial software at a bank, and then at home I work on defi/blockchain based financial stuff, I could be setting up a liability for me or my users.

Now I understand what you are saying, and no. For a salaried employee it pretty much covers everything you do that is related to your job, with that “related to your job” being interpreted very loosely, or done with company equipment or on company time.