Asking for research purposes.
Masturbation is a perfectly normal activity for an adult male to partake in, it helps with sperm viability and hormonal control, the recommended amount of masturbation varies from 3-6 days depending on activity and libido.
Wasting seed is a sin punishable by death in Judaism, Islam and Catholic. It's the reason why zoomers testosterone is now lower than men in their 30s-50s
Masturbation does not affect long term testosterone. And noone cares about what your medieval religion says.
If you don't fap for an extended time as religion's like Islam and Christianity encourge it can lead to a lower libido, infertility and testicular cancer. Also the sperm you don't ejaculated will eventually die in the balls after about a week of production, so it isn't like this resource that you are losing every time you fap, in fact regular fapping (3-6 day interval) leads to better sperm potency.