@blogdiva Here's a hot take from the Original Safari Girl™ (accept no substitutes):

Tell your friend to do what I've done: install Firefox (or one of it's clones) on all their devices and then *immediately* install uBlock Origin and Privacy Badger afterwards. Follow that up with setting the search engine to noai.duckduckgo.com or something more palatable but still safe.

And use the default browser on their machines (Safari, Edge, etc.) only as a compatibility crutch in time of desperate need.