More and more devices will lose this feature as there are instructions from higher up (google) to remove this feature from devices to encourage you to pay for youtube premium

https://community.oppo.com/thread/1499588510984699905
https://www.androidauthority.com/xiaomi-rem...d-play-3424315/

you have 3 options

1. pay for youtube premium
2. use apps like revanced
3. use apps like newpipe (does not have login feature so if you are worried about accounts being compromised)
4. use youtube in a browser with adblock like firefox or kiwi