I think this is something that usually happens if we look at several exchanges. This is because the price displayed on an exchange is based on the most recent orders. The number of transactions that occur on each exchange is definitely not the same at one time, thereby increasing the price on one exchange, even though there is still no price change on the other exchange. But this will not last long because there will be another correction after a few minutes so that the price is closer to the same.

But you have to be careful in looking at price differences on exchanges that are not well known. It's possible that an exchange that looks cheaper is a fake exchange that attracts prey. Be aware of it and always use verified and reputed exchanges.