There might be some circumstances where working under a non-compete is acceptable (well compensated garden leave, very narrow domain you're not that married to,

There might be some circumstances where working under a non-compete is acceptable (well compensated garden leave, very narrow domain you're not that married to, old-school firm culture with expectation of lifetime employment) but overall I think it'd be pretty crazy to try to have a tech career anywhere except California under current law. If you get laid off you're effectively prohibited from earning any income related to your skills for 2+ years.