Also to note if you are playing these positions with Black, watch for the attacking theme. Main Theme for White against g6,Bg7 and ..d6 or ..c5 : White will try to play Qd1-e1, Kh1, then f4-f5 or Qe1-g3 with strong attack.
This can arise from Pirc, Sicilian Kan-Taimanov or Grand Prix Attack (B23). Typically White's bishop goes on b3
Full game analysis here
Qd1-e1, f4-f5 games opening analysis
All analyzed