Core version

Yes, for the majority of budget Android phones, they have Android Go, which is the stripped down version of Android, much like One UI Core.

Sa pagkaka-alam ko:
RealmeUI meron rin mas lighter version na based on Android Go. Sa Cherry Mobile meron rin siguro, at mas lalo na sa myPhone.

Motorola at Nokia, meron rin yung cheapest devices nila. May iba na nasa AndroidOne program kahit more than 3 years na since na-release yung device, pero kailangan naka-AndroidGo para hindi siya mabigat para sa old hardware.

Yes other brands has

Yes other brands have their own version of One Core. As most entry level units doesn't have the hardware for all the features of the Android OS. 😊

Yung Core version ni Sammy is like Android Go. Other brands can use Android Go pero Samsung "customized" it to be comparable to a lightweight Android OS, thus only core features being available to low end devices.