Get /e/os on to a brand new Lenovo tablet

You could try to install GSI there is from e/OS/ Team but with Android 10 (Q). Depending on the partition you could also install unofficial which is Android 13 or 14.

Check your treble status

But I gotta warn you, for my Lenovo Tablet it took me a long time how to isntall it (my knowledge was also lower back then)