Can you get a phone where you can update the system without the need to root your phone? I've never done this myself (rooting) and for my new phone, I want to have something that will use Google Play Store and that I will be able to update the system myself. My current phone is more than 5 years old (Xiomi Redmi 4x) and it looks like Xiomi put a time bomb to slow the phone down (sometimes there is even a delay when you tap the input box to open the virtual keyboard). It suddenly slowed down when about 5 years passed. I'm not 100% sure if they did but I would not be surprised.
And another question: can you update the OS on every phone?
Can you suggest something that will allow me to use Google Play and have up to date system?