"...the entire length..." Yep. Doesn't leave any space for barrel vibration. Floating a barrel may or may not help accuracy. Some rifles like it. Some don't. Unfortunately, the only way to find out if your rifle likes it is to try it. Fortunately, if it doesn't, fixing it is no big deal. Just put a pressure point about an inch or so aft of the end of the forestock.
If you opt to try floating the barrel, the bedding should be around that receiver and under the chamber area of the barrel. If you have a wood stock, the barrel channel will need sealing once you've determined if floating has made any difference. That'd be a smaller group with the same ammo.
Do not just change the bedding without shooting the rifle first. You need an accuracy baseline.