On top of that, the GSI protagonist @harvey186 has withdrawn from the eForum. So it won’t get any easier to get hold of well-functioning /e/GSIs.
The Galaxy A40 was released in April 20219 with Android 9.0 (Pie) and is therefore fully Treble GSI compatible. You will have a quick AOSP Android 11 success experience with [UNOFFICIAL] LineageOS-18.1 For Samsung Galaxy A40. The LOS 18.1 build is from 29.12.2020 and therefore up-to-date.
A good chance for an early [UNOFFICIAL] /e/ Q-GSI results from @anon26953564: