I've heard zero complaints about the reading list feature in Microsoft Edge.
Which is funny because, in terms of their primary purpose, there's not much difference between Edge's Reading List and Firefox's Pocket.
If most detractors were honest with themselves the reason that Pocket had the backlash is because people saw it as a move towards the commercialisation of Firefox. The fact that Mozilla now owns Pocket outright seems to be largely ignored.
The kinds of people who would complain about the reading list feature in Microsoft Edge are probably using firefox not Microsoft Edge.
Personally I was very sad when Mozilla started bundling an extension for a third party commercial service that I didn't trust and had overlapping functionality with other services that I use and have trusted for many years. It's slightly better now that they've acquired Pocket, but a huge part of why I use firefox is because I don't like feeling like I'm the product when I'm using the internet.