Now back to the topic...
As should be expected, given all the talk/thoughts on clipless vs. flats... Manufacturers of mtb shoes are bringing more cross-over type products to the market.
This, very recent, as in three days ago, article presents one of them...
https://www.bikeradar.com/us/mtb/gear/category/clothing/shoes/product/oneal-session-clipless-shoes-review-52179/