If you are serious about being a digital nomad you must use some version of Linux. I am not picky about which one. Mint, Fedora, Pop OS are popular choices that I also use at times. Why Linux? It offers better performance, stronger privacy, and superior security.
Encrypt your entire drive with LUKS and a strong passphrase and your data is safely stored in a vault inside a fortress. Unlike Windows or iOS, Linux does not run bloated background tasks that sap your resources. This means faster and more stable performance so your system runs smoothly without distractions.