We use Signal on birthdays, mother's and father's day to chat with our Granddaughters and son 400 miles away.
Some of my Doctors do video visits, in software that is proprietary to their hosptiial group.
When our daughter was going to school in the U.K. we Skyped with her regularly. She is returning to school in German, not sure what platform will will use.
I am on the board of a non-profit and during the pandemic they switched from in person board meetings at a board members house, to Zoom. Some want to go back to in person, but Zoom is sooooo much more easier.