2022 was an absoluete terrible year my feet and knee.
I developed flat feet and every step I took hurt like a 8 on a 10 scale, I ate a shitload of paracetamol and ibuprofin every day just to get through it.
So as my feet hurt I took to taking my bike down to the busstop to get to work, unfortunately my shoes had a very sticky rubber sole so when I got off my bike instead of twisting my foot against the ground as I normally would, I was twisting knee, no issues at first, but after a few weeks it started hurting like hell when standing up from sitting or lying down.
I got custom insoles made, that helped a bit with the flat feet, but it still hurt.
Then I got a new, taller bed so I didn't need fight to stand up in the morning, my old bed was completely worn out and it was a hodge podge to start with so that was nice, and helped me out in the mornings.
Then my municipallity finnished renovating the path to the bus stop and even installed a new one closer to me, so instead of having to walk 600 meters to my bus stop, I just have to walk 300 meters, but did have to walk down/up a staircase everyday.
Once that was opened I rapidly got better, I am still not completely restored but almost.
So my advice is "walk up and down the stairs"