WFS dev team has looked into it and can’t find any conflict. Play store is also looking into the issue further.
SM-R890 is paired with Fold 3, Chrome browser recognizes the watch but not the Play app.
I think there is a communication issue between Galaxy Wearable and Google Play on Fold 3. As I mentioned in this post that I can’t find any watch faces made from WFS on Fold 3 and there are no watch and watch face subcategories in the search result. Same search on S10 shows many watch faces made with WFS.
I don’t know if this is an unique problem on my Fold 3 or all Fold 3 users are experiencing the same issue.