If you're not buying till the 2025 model year, almost every automaker is adopting Tesla's charging port meaning you can get Tesla charging without having to get a Tesla.
At which point charging will take longer because of the lines involved. Hope they're building out. I hear and see no chargers being built. And they totally could be.
Along my long destination driving routes through rural areas, the charging stations rarely have a car in them. So yes and no to this. Obviously urban and near-urban areas are always packed.
They are building out rapidly. I'm not sure why you would "hear and see" them being built. But every day multiple new ones open. https://supercharge.info/
There's no indication other brands will pay the same price for a Tesla charge though.