The only thing I want that a gym might have is a pull up bar. Other than that, two kettlebells plus cals plus running give me more than enough challenge. Gymnastics rings on a long belt plus a sturdy tree branch can stand in for a pull up bar.
Unless you are a pro and need access to a climbing gym, which is very hard to completely replace without a trip to a boulder, gyms are rip offs.
I exercise on and off all my life, with at least 20 exercising years. I did college gyms, ymca, paid gyms, and once even a bona fide body building club with a proper hulking ph. d. as a trainer. I have plenty of experience with many modalities.
My two cents, look into advanced cals, and running, and look up “dynamic tension” by Charles Atlas, and screw the gym. If you can, add some kettlebells and a pull up bar. With dynamic tension you can do pulling movements without a pull up bar.