I'm in Europe, I can unsubscribe with 3-4 clicks, depending on how you count:

1. Click user icon in top right hand corner (I would not count this one)

2. Click "Account & Settings"

3. Click "End membership"

4. Click "End on {Month} {Day}, 2022"

Two clicks will also be nice, but not sure there was a problem that needed fixing. Maybe it is worse in some parts of Europe than others, or maybe I get a different menu because I'm an immigrant to Europe and not a European.

I have also done it many times before and the process was more or less the same, prime just simply does not have enough content to subscribe for more than one month at a time, so I always cancel immediately after subscribing.