So, I’m in a long-term relationship with my loving partner, and everything is good, except for the matters of sex. Suffice it to say, one partner (male) has a very overwhelming sexual drive, while the other (female) needs sex like once a month (and it has always been so throughout life). Partners are monogamous and do not explore options of having a third party.
Can any good advice be derived for such cases? Is there something that can be done to improve things on each side? I would love to hear your advice.

One thing to investigate is getting both of your hormones checked. Identifying and treating issues like thyroid, low or high testosterone, low or high estradiol/progesterone, etc. While it hasn’t completely aligned the mismatch it has been an overall improvement and helped give perspective. Granted, it might turn out you’re both just the way you are.
That’s a useful bit of advice indeed! Thank you