[SyneRyder]

On macOS you can also type things like Opt-U to get an umlaut, followed by typing the letter you want underneath it (eg for ü, ë, ä, ö). ß is Opt-S, I think é is Opt-E E, etc. I prefer that to the AltGr+key shortcuts, which I find harder to remember. I don't use the Mac as my primary OS anymore, but that's one of the things I miss the most.

[lobo_tuerto]

On Linux there are dedicated combination keys to put accents on characters like: ä, á, é, ë, etc.

This is how it has always worked (I use a Latin-American keyboard layout). And I think it's the best of both worlds.

If you wanted and your font supports it you could have: ṕẃéŕý (accent key + character key).

All above without touching the AltGr key.