Multi-sig has it's place, UX is improving and taproot multi-sig makes your on-chain footprint cleaner so you don't give away you in multi-sig.

I still don't think it's the ultimate one-size-fits all solution though, first you adding complexity to your setup, which you need to be ready for, thats why I always say its a graduation process, get comfortable with single sig first before graduating towards a more robust setup.

Multi-sig can give you better security in theory, but you can have a 2/3, means fuckall if you keep all your keys in one spot like a safe and I get access, then its just security theatre

Airgapped single-sig to me solves the majority of self custody problems and threats, and if you in a part of the world where wrench attacks are common, a passphrase or a timelock on your UTXOs should be enough to keep your funds safe