homestead exclusion, recapture rental house

We own a home that we've rented out for the last 13 years. This house had previously been our primary residence.

We are thinking of moving back into this house for 3 years to save taxes. The house was purchased for $280k 20 years ago has been depreciated $150k over the last 13 years. We currently owe $120k on this house. House would most likely sell for $375 to $400k if sold now.

We will be retiring in 3 years and income will be significantly reduced. Would most likely be selling this house at that time..

Wondering if this makes sense financially to do that and if anyone of you have done something like this.

Any helpful suggestions would be appreciated. thank you!