There’s also “Open in Whatsapp” which has been around for 5 years, I’ve used it for all this time actually, I stopped giving Whatsapp access to my contacts around the time I was degoogling, plus I keep it installed in the work profile (Shelter), where I purposefully don’t sync my personal addressbook. So this type of apps is very handy for a couple different scenarios:

• you need to contact someone you have no interest in saving the contact of forever (plumber, guy on craigslist, etc)
• you want to contact a person you haven’t talked to in a long while (otherwise you could just search their name within whatsapp) of which you have the number somewhere else

All in all you save time mostly, and potentially give a little less to Meta.