Yes you do, as most field cameras FS support in front is limited, and can cause wear elsewhere like on focusing tracks, locks etc... And with base tilt cameras lens weight can allow FS to fall forward/backwards causing lens or camera damage...

If large lenses are used frequently, axis tilt or fixed front cameras (like portrait models) usually are stronger... You usually don't need so much front movements as large fast lenses get weird off axis fast, so not essential... And portrait models are cheaper now...

Steve K