I recently renovated our upstairs bathroom which included a fresh new toilet. We raised the flange to flush with floor level (technically a hairline above) and placed the wax gasket to the base of the toilet as per manufacturer instructions. It was pretty hot that day and the wax was extremely malleable.
When setting the toilet, we felt little to no resistance from the wax gasket. Past toilet installs I've done I used an oversized wax ring just to be sure, but my brother insisted on using the wax ring that came with the toilet. I flushed a few times, no leaks appearing anywhere. Toilet water level decreases a bit after a flush but stays at that level (assuming toilet flange).
Just wanted to see if not feeling a lot of resistance from the gasket when setting the toilet is OK.