I'd be happy to have a Freeze function without it being coupled to any effects (like EHX Freeze pedal or the Gamechanger Plus Pedal). I'd press 'Freeze', and my current sound is frozen (micro-looped, if you like) until I release the freeze button. Any active effects etc. would not be impacted by my freezing the current sound. Freeze parameters could be the attack and the tail of the freeze (see Plus Pedal).
Cheers, Hermann