As more and more people buy EVs, it's not uncommon that the charging infrastructure is not expanding at the same rate. Many EV owners I know, have all experienced to wait in a line for 15 min charge on a trip. Those that have had a Tesla for 7-8 years all agree that it is a relatively new thing.

The infrastructure will improve and will expand to keep up, but it is one of the teething issues that is slowing mass adoption.