I have exactly this issue.My bootloader was unlocked too , but i still have L1 i guess it's only luck or in this case bad luck. But at least you receive notification, i set everything from autostart, to battery optimization (and also some stuff in dev. Mode) with 0 result, if i close the app on the task manager i receive 0 notification. So i guess everyone has his share of bad luck with this tablet.
I'm the only one that have problems on 90hz with continuous change of brightness on app like netflix ? On 60hz it works fine (except grey that's absolute s**t)
He's not telling you to not speak spanish. He's asking you to put a translation underneath just as I did.
Mam, Sir! You're very welcome on XDA, and we don't mind at all that you speak Spanish in your post as it's your native language. It's you're right and privilege. And I'm very aware how many people in the world speak Spanish.