There are a lot of surgical solutions that help with knee pain. There are also tons of home remedies that may or may not work. Here are a few things that I have found beneficial for folks over the years of practice.
First off, have your knees checked by a licensed chiropractor. The knee can rotate or go posterior, out of its normal juxtaposition, which can be painful. This can cause undue wear and tear. It also makes the knee more susceptible to further injury as you participate in strenuous activities. There are a variety of adjustments that can be done. Each doctor of chiropractic will have developed their own protocol that works for them. I have three different types of adjustments that I can perform, depending on the type of injury. There are orthopedic tests that we can do to determine the cause of the pain and this drives recommendations for treatment
Some joint remedies can be helpful also. I usually recommend a joint formula that contains Glucosamine Hydrochloride, Chondroitin Sulfate, and MSM. Collagen supplements (i.e. shark cartilage) have been on my radar as a supplement that works also. My suggestion is that, if you are going to try a supplement, add one, take it for several months before adding anything else. Most of these supplements can take up to 3 months before you start seeing a difference. Rate your pain before starting on a supplement and then at the 3 or 6 month point. A lot can change in that time so there may be other factors for your knee pain improvement.
Sometimes, the goal of the adjustments and/or supplements are simply to be more comfortable until your condition is bad enough to be a surgical candidate. Adjustments can slow the progress of arthritic degeneration and really delay the inevitable surgery for a good amount of time. I hope this gives you some alternatives for knee pain, besides jumping right into surgery.
Peace to your day. Be safe, wear your mask, and wash your hands. Be a light in these dark times.