You say “same kernel as Arch,” but Arch has five officially supported kernels, and you can choose any of them while you build your system. EndeavourOS allows you to switch kernels, but it’s assumed you will install the latest mainline kernel and you are only given LTS and Zen as additional options.
If you use LTS or Zen, or especially if you use Hardened or Real-Time, vanilla Arch is a different experience re:kernel.
I have a 2022 mid-range laptop which does work with Windows 11, but sounds like a jet engine when I try to run it.
I also have Arch installed, which runs silently 80% of the time, with moderate fan usage the other 20%.
As you may expect from this, 11 is typically sluggish, especially under load; whereas Arch is typically quick and responsive, with moments of lag noticeable but infrequent.
Under the circumstances, using 11 would be a terrible choice. There’s just no reason to subject my device to it.