Is there any Possibility to have OneUi 2.0 in A30 and M10

I have M10 which is running on OneUi 1.1 Android PieI want To Downgrade it To Factory Version which is Android 8.1 Can anyone Help With it .. How Can I Do that with Stock Firmware and Odin Tool

can Anyone Tell Me Why Samsung M10 is not listed for android 10 Update

Xiaomi - Miui 11 VsVivo - Funtouch Ui VsOppo/Realme - ColorOs 6.0Oneplus - OxygenOsStock android Still My Fav is Samsung One Ui It's Flexibility , Immersive Look , Experience, fonts, easy to Use, Like a Professional, Camera UI etc That's Why I Used t...

What About Updates On Galaxy M10,M20Samsung Totally Forgets About M10,M20 Update Whereas ..A-  series Mobile Regularly Get Updates