While I think Airalo has really good offers, I also have to say that I sometimes run into issues. Already twice the APN set during installation was wrong. Only after back and forth with the support, mainly replying to stupid questions, they gave me another APN value to enter. Now I have an issue in Mauritius, the eSIM was working fine for two days then suddenly did not transfer any data anymore while still 4G connected to the network and more than enough data remaining. So far no real help from support, just the turn-on-off phone type of suggestions.

My conclusion is to always have a backup.