It's a Redmi Note 8T. Hardware-wise there is nothing wrong with it. Even the battery is still decent, though it does drain a bit faster now of course.
Software, on the other hand... It seems like the company dropped support back in 2023, but I had already moved to LineageOS by then. Except they also dropped support for the device when Android 11 reached EOL and nobody had the drive to make an Android 12+ port for it. So that was over a year ago now... I think there might be alternatives but reinstalling my main phone isn't on the top of my "fun things to do" list.