You have until October 2021 before you need to worry about support being dropped. Plenty can happen before then, I would be worried more about putting your phon

You have until October 2021 before you need to worry about support being dropped. Plenty can happen before then, I would be worried more about putting your phone in the washing machine than the lack of updates from Google, it will still turn on in November 2021, you just won't get Android Yummy-sweets or whatever the release will be called by then.