The knee sleeve is very supportive and helps so you don't twist your knee. I use it when I walk a lot, riding the recumbent bike or mowing the yard. It can be hot but not any worse than wearing pants when it's 90. I'm hoping it won't be two years because I'm so over my leg being sore. The knee sleeve also helps with swelling.
Definitely try one.

I am 19 months out. It is definitely better but not pain free. Yes the sleeve
Helps a lot. I don’t always know
What will aggravate it but do know if I’m going for a bike ride or hike a sleeve helps. However my time
On the trail is under an hour, as the rest
Of
My body keeps
Falling apart. Ugh! Haha