Mexico H1B stamping

Did anyone go to Mexico to renew H1b as 3rd country national in 2020?
I see they have appointments available.
I saw that renewal without an appointment is only available if a Mexican resident or Mexican passport.
As I understood there is no such rule for normal appointments. Wanted to check if anyone here has recent experience as 3rd country national stamping h1b in Mexico.

Thanks for the help.