The strap is definitely thicker/sturdier than the Quest 2 version, so I have no concerns over this one breaking like the early version for the Quest 2 👍
I'm in Canada so this strap is $95 here, no thanks, I have the one for the Quest-2 and will wait for 3D printable adaptors for it until the BoBoVR adaptor kit for the M2 strap is available. Should be getting my Quest 3 next week, might be 3D print adaptors available by then! LOL