[pabs3]

Maemo is still around in the form of Maemo Leste. There are also various other open source mobile projects, notably postmarketOS. In terms of hardware, the PinePhone and Purism Librem 5 are projects aimed at non-Android open source operating systems like Linux/BSD.

https://maemo-leste.github.io/ https://postmarketos.org/ https://wiki.debian.org/Mobile#software-distros https://www.pine64.org/ https://puri.sm/

[Cloudef]

It exists, but sadly the market share is for ios/android and thats what i get paid for. Pine also seems interesting.

[pabs3]

I guess it is pretty unlikely for any new mobile company to take much market share from iOS/Android, not without billions in marketing anyway.