Yeah, I had/have no intention of moving any time soon (gf and I plan to be here another 10-15 years at least), but with a 2.99% rate on a 30-year fixed, we're going to cling to that like grim death. On the bright side, we've been absolutely dumping money into the mortgage and - if we stopped paying extra today - are 88 months ahead of schedule.
We did the math on 30 year vs. 15 year payments, and decided to go with the 30 but pay extra principle each month to make the payment, effectively, that of a 15 year loan. That way we can get it payed off early but have some runway in case finances change. We're both incredibly lucky to have worked in industries that remained in demand (healthcare IT for me, and vitamins/healthcare woo for her) during Covid.