WSHP and Cooler / Freezer Heat Recovery

Nothing wrong, but you should make sure the manufacturer designed for the fluid temperatures and type. and obviously this adds load to the field, so it needs to be sized larger.

FWIW, our buildings have regular HVAC energy recovery chillers on geo-thermal and they work at the very extremes of what they are approved. IMHO, this isn't great for longevity. Once the geothermal field is a bit too cold, they stop (this is heating....). I really recommend using equipment that is designed for geothermal.

Probably less of an issue for cooling since geothermal has lower temps than air-cooled water. But you also could require higher fluid temps than you get from geothermal. They have a minimum lift. So it can be done, but it isn't just a plug & play.

How big are the freezers? Is there really enough heat available to make it worthwhile?