For anyone else coming to this thread and encountering some of the information (and misinformation):
1. My service centre was willing to supply the new comfort suspension parts AND fit to my 2020 MY. They wanted a couple of hours labour - about $550 Canadian.
2. I decided to DIY and did it this weekend. They had no issues ordering the parts, arrived in a week or so.
Note that I am out of warranty which makes this easier but there is absolutely no difference in parts compatibility between my 2020 and the latest components. Install took me 2-3 hours total - I’m handy but it’s my first time doing suspension so I had a learning curve - first one took probably four times as long as the last!
As to the result, it seems to have taken all the sharp edges off the bumps at lower speeds, overall vibration is less and highway is quieter and smoother. I’d be lying if I said it’s a massive change, but it’s better. I am at 42 psi - I’m guessing reducing that might make a difference too.