I just did some transactions and a ATM withdrawal in Uruguay in UYU.
Am I correct that there is a markup of around 1.5%? It is a Tuesday, so not a weekend.
I sincerely hope to see that markups like that on THB (and also UYU?) will disappear.
What I would appreciate is that during weekend Revolut would block the payment (incl a temporarily markup) and then use the real interbank rate of monday morning/sunday evening when the FX markets open again instead of applying a 0.5-1.5% weekend markup to finally settle the bill (I see that Visa and Amex do that being a credit card).