I did the move about 2 and a half years ago (was 26 at the time). I live out East near Wanstead and can ride nearly entirely off road to Epping forest so can easily do 30 mile rides without barely touching a road.
I chose to move a bit further out as I spend Mon-Fri in the city as it is, so didn’t want to move too central (tube in is about 25mins ish).
You may have a different opinion mind, as I moved with my gf.