8 years and only froze once on stairs to our hotel room on the second floor. Recently though, I have to be careful about moving too quickly because my reactions are slower than they used to be

Thank you for that list. How difficult to read and discern the results, all statistics and words I do not quite understand. Most of them are old studies, I guess they think they have no more information to get.
Obviously for me the issue can get a lot worse before I can get some other ideas. It is a progressive disease!

My ex had all those issues without being on any meds at all, he was just prescribed levo dopa and he just started it today to see if the freezing, tremors and falling lessens, I suggest you ask for a different med or neuro check to see what else you can take as I read on the bottle it eventually doesn't help after a while, so sorry you are suffering with it now and that it isn't helping your PD.

Interesting articles about the freezing of gait and the levadop paradox:
https://www.ncbi.nlm.nih.gov/pubmed/31841600

have you askd your neurologist?