Which country are you in? I know Rodeobe has been downvoted for saying this but in UK, all companies I've contracted for (including Microsoft) either have removed the IP and non-compete clauses or have a system for exceptions that you can mark which projects are your own
I imagine it depends on your leverage in the employment but try having a candid talk about your side projects and explain it's important to you to continue to work on IP outside of work – a system where you explicitly inform them about outside projects could be a compromise for a company who is a stickler on IP
Tech is still a field where good devs are scarce so if an employer has decided on someone, you do have a fair bit of leverage. If a company wasn't open to a good faith discussion about outside IP, that'd be a signal to me to think twice about the culture and working there
