Whole house bathroom vent fan dying

My ranch house with a finished basement was built in 2019 by a production builder and some corners were cut. Instead of installing a proper ERV they set the bathroom fan to run 24/7. The house is tight and well insulated, but the fan is at the end of its life and making a racket. Does it really matter where the bathroom fan is located? There is no door to the basement, it is completely open to the main floor. Can the down stairs bathroom fan be turned on to do the 24/7 ventilation duties?