It would be really cool if Microsoft Edge could show our Collections saved at www.bing.com/saves. I think this will also give people a reason to use Bing.
Edge could have a separate Collection named Bing Saves or something where these things are stored. For those who don't use Bing, there may be an option to turn off the feature.
If anyone likes it, please also send this idea as a feature request through the feedback tool (alt + shift + i).