Shifter won't release from park, most of the time?

My 2007 Saturn Ion 2.2L Automatic while parked in my driveway which has a slight incline started to periodically get stuck in park. At first i would mash the button on the shifter while trying to shift it to drive. I would rock the car back and forth with body weight while mashing the button and giving pressure to move it to drive. Still nothing worked. During the times when I got it to work I lifted the emergency break and put it back down and somehow that allowed it to move to drive. I guess a coincidence? I took it to a mechanic who said the linkage and stuff was dirty so he cleaned it up and said it should be fine (but couldn't reproduce the problem then to show him because it happened some days and not others).

Since getting it back it still decides to (even on flat ground) to not shift into drive after being in park. I now have to put my key in the manual release hole next to the shifter to allow it to move to drive after being parked now. Once it is released it moves freely and smoothly into any gear. I also tested the brake switch by checking if my brake lights were on when the problem is occurring, and they work fine when pressing the brake. The mechanic didn't mention anything wrong with the linkage. I called a mechanic and told him the problem. He said I needed to replace the shift interlock solenoid. Which I purchased an Acdelco GM Genuine part 1573424 on amazon found here:https://www.amazon.com/ACDelco-15793413-Original-Equipment-Interlock/dp/B005OV800M/ref=sr_1_1?crid=LV06HHEUAL9S&keywords=GM+Genuine+Parts+15793413+Shift+Interlock+Solenoid&qid=1682998517&s=automotive&sprefix=gm+genuine+parts+15793413+shift+interlock+solenoid%2Cautomotive%2C128&sr=1-1

I don't know if this is related or just a symptom of something else but my car had parts replaced back in 2017 (couldn't find out which as the car business got a new owner and lost access) and I couldn't find out which part was replaced for key getting stuck in ignition. Now when I go to turn the car off, it turns halfway and won't turn the rest of the way. I have to mash my shifter button which makes the ignition make audible clicking sounds. Eventually after mashing the shifter button I hear the ignition make a louder click than other times and then I can move the key through full rotation, and can then remove it.

Could you help provide insight if you believe it is not the problem and if you believe it is, with diagrams on how to replace the part so I may do so?