Move-out with pet hair - how get deposit back?

Lease up next month. Had corgi 2 years apartment. Love him, best roommate. But move-out inspection coming, pet hair hardwood EVERYWHERE. In cracks, corners, under appliances. Regular vacuuming not getting all.

Lease says "return original condition." Original didn't include 2 years pet hair. Friends say landlords always keep pet deposits but don't want just accept losing $800.🤯

Anyone with pets gotten deposit back? What deep cleaning worked pet hair from hardwood for inspection? Even possible or budget losing?