I just picked up a 2020 JLU a couple of month ago and yeah, the rain gutter problem still exists. I'm in New Brunswick and we get a fair amount of rain here too.
There is an aftermarket solution from JeCar on Amazon called the JeCar Hardtop Rain Diverter ABS Drip Rail Extension. I ordered them, but haven't had the time to install them yet. So I'm not sure how well they'll work. From the looks of the photos on Amazon they extend the rain channel around to the windshield and deposit the water there.
Not bad for only $30.35 CAD.
As for the Freedom top, I haven't had mine leak so far, and it seems fairly tight.
https://www.amazon.com/dp/B08LCXQ24P/
Without all the tracking junk
People had good things to say about this. I have it but haven’t put it on yet, too cold out. https://www.amazon.com/gp/product/B08LCXQ24P/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1