Leupold FXII 3x Big Bore, Leupold FXII 4x (use this most), and Leupold VX3 2.5x8. Also have used Leupold FXII 6x especially when hunting high country mule deer, and have no qualms about it even in timber.

In my opinion the whole FOV issue is overthought.

I have killed numerous animals in thickets/timber of AR-MO-CO-WY-AK with 4x and 6x scopes with no problems.

The key is familiarization and practice with your gun/scope until it just becomes second nature.