Gas stations change their prices based on their primary supplier for a given area these prices tend to be more or less the same, they also don’t make money on selling gas these days but rather of the convenience store/restaurant or by leasing that space to someone.
Gas stations do that at a very regular cadence: daily.
Visa and Mastercard change prices much less often than that, so this take is a little too apples-and-oranges for me.
It's true that they don't change prices daily, but it's also not particularly uncommon for them to do so. Visa raised an assessment I think last January? And interchange fees have changed several times over the years as well.