From the children/grandchildren perspective, nothing has changed as it has Facebook and instagram integration, so we dont have to post on it directly.
On the iPhone they have some UI accommodations that might help with this sort of thing. I needed them for when I would try to do something with Waze while my wife is driving. There is nothing to brace your arm with i her Jeep from the passenger side and it’s quite a stretch, so my hand is bobbing all over the place. Those are times I wish Siri could do more UI interaction, like “press ok.”
I haven’t looked for that kind of equivalent mouse interaction motor control accommodation on macOS.
I think leaving the configuration in config files or a separate app (like tweak tool) is much better for novices and power users.