Probably hard to answer but in general what are the tradeoffs between sponsoring non-US-citizen employees to come to the US, versus not and instead simply use a

Probably hard to answer but in general what are the tradeoffs between sponsoring non-US-citizen employees to come to the US, versus not and instead simply use a 'global remote' model, that for example the YC company Deel (or even Stripe) enables? Is it more cost effective to continue doing global remote or are there benefits to bringing employees to the US?