There is no such thing as an ALIAS record. That’s something your DNS provider made up and shows to you in the interface, but behind the scenes they are providing the same old AAAA and A records as always, along with some sort of auto-updating feature which they will run to detect changes in the address of the name in the “ALIAS record”. How often this will update is anyone’s guess as it’s up to the DNS provider.

See: https://en.wikipedia.org/wiki/CNAME_record#ANAME_record