When I did this search on my phone, the Apps would come up, but no games were listed. Had to specifically select games after searching to get the list.
Edit: And scrolling through that list, roughly half are 'pro' or 'deluxe' versions of free versions also in the list. It also seems like each game has several iterations of the same theme. I found 5 or 6 tank games that all had the exact same screenshots and were from the same developer. Seems like the 300+ games is more like 30ish actually different or unique games. *Sigh* Not saying those are worth anything, either.
Didn't see WoT Blitz on the list either. MS needs a checkbox for Continuum urgently.
EDIT: Also, Microsoft has a 'Collection' for continuum capable apps, but only shows 26 on that list.
MS is really dropping the ball on what they say is the next big thing in computing...