I mean regular people don’t know how to read it, except if you randomly decided you wanted to. It’s pretty big culturally, e.g. the Baška tablet is a very important piece of history written in glagolitic that everyone knows about, and I’ve seen the alphabet randomly displayed in a few places, but nobody actually uses it today.
One thing I don’t get is that e.g. I have Revolut installed, I use it regularly, Google knows this yet still half or a quarter of my ads for months now has still been Revolut. Why??