That does seem frustrating, and I don’t even recall ever using the feature as you described it (and I think you did explain it well enough, if I understand you correctly).
I don’t have any idea how or why that part of the playback experience changed (or if it was intentional), but if it was there before then it seems like Wyze should be able to restore that at some point. A couple of Wishlist topics come to mind:
In this second one, I’ve just skimmed it and don’t see your specific request, but I imagine a “maintain zoom while scrubbing” ask would fit: