[gattilorenz]

The default Mac approach is IMHO superior in this. Just select the regular US keyboard, you have deadkeys available if you need them by pressing “alt”+symbol (e.g. “o” to have the dieresis symbol), then press the vowel you want to modify. But if you don’t know better, it’s just a regular US layout, and it’s always there, by default, on every computer (including that of your colleagues).

[whateverboat]

It's good from a text typing point of view but horrible from a keyboard shortcut point of view. I personally had to disable the feature so that I could actually use keyboard shortcuts in a sane manner.

The AltGr approach is much superior by not invading on the keyboard shortcut space.

[gattilorenz]

Which keyboard shortcuts? In MacOS apps they’re usually done with the Cmd key (=Win key), not Option (=Alt).

If you mean in the terminal, or in a RDP session, yeah, that can happen (but it’s obviously a minority of users, and you can select the US International keyboard anyway).