There will be many opinions on this.
If you are not raising the flange, you need to either double up the wax, or perhaps the thick wax will be enough.
If the wax is not compressing when the bowl is pushed down, you will need more wax.
Our typical installation in the Seattle area is to use two wax rings.
Or you can push a Fluidmaster waxless seal on the bottom of the bowl, and then drop the bowl down.
Install kit for toilets
Notice that the bag of bolts includes four nuts and four washers.