I usually blog about my roaming experiences when I travel abroad. Sometimes I have issues, but more recently things have gone very smoothly.
I had visited Amsterdam nearly two years ago, back in October 2023, then I had no issues with roaming. I was visiting the Netherlands again, though this time I was attending a conference in Delft.
When I go abroad the process I use is go into Settings -> Mobile Data and turn off virtually all the apps which could use mobile data. I would turn off mobile data for virtually all my apps and also specifically iCloud Drive and iCloud Backup. I am pretty sure they were the culprits for my excessive data usage whilst in Portugal. This time, as with my recent trip to France, I only turned off mobile data for iCloud Drive and iCloud Backup and a few data heavy apps.
The hotel I was staying at had good wifi, and the conference venue at TU Delft had eduroam. Having said that I did make use of mobile data when I was in coffee shops, on the train, and walking around various Dutch places. I was impressed with the mobile data speeds that were available.
I was there for five days and when I landed back in Bristol, I had not used up all my data.