I thought Nova was going the way of dinosaurs (i.e. there’s only one developer left to support it).
Edit to add: Unlikely that Google will do anything about it. What will users do - switch to iOS? Also, is it completely in Google’s hands, since stock launchers on third party devices such as OnePlus, Samsung, et al continue to work quite well.
The v8 series has quite a few nifty upgrades which makes quite the value add over the v7 series.
Further, i don’t think the lag issue is resolved in the v7 series.
Curious though, why do u recommend the v7.0.57?