The toilet has to be removed and the flooring cut to go around the floor drain.
How to install laminate flooring under toilet.
Installing under a toilet after you remove the toilet which is often a two person job you need to measure the position of the flange and cut a hole for it in the flooring using a jigsaw.
Toilets seldom present a problem when installing laminate flooring because you have to remove the toilet before laying the floor.
Because laminate flooring floats above the sub floor on top of underlayment it will expand and contract slightly with the temperature and humidity of the room.
Then the toilet is reset so the base covers the cuts around the drain.
If you re installing a new floor pedestal sink and toilet you should install the laminate flooring first so it s under the sink and toilet.
Since you re raising the level of the floor you ll likely need to raise the level of the flange that skirts the drain as well.
See my flooring install playlist.
Floating floors are an easy mess free way to install new flooring without necessarily having to remove the existing flooring.