I had a gift card from the bike club about to expire, & bought a U lock.
It is replacing one that I left at the gym which shut down from Covid. By the time I thought to retrieve the lock, the gym was totally gone, including the bike racks.
I did a weekly spin class there for years. Sadly, even if the gym came back, spending an hour breathing hard with a group in an enclosed room still doesn't seem like a good idea.