I just did it this morning, when you burn the ISO to a usb drive using Rufus you get a nice little menu that allows you to pre-set a local account, disable the TPM check and more.
The biggest pain is downloading the windows 11 iso in the first place. You can only do that when the site believes you're not already using windows.
Bypassing the online check on setup is basically required on new hardware anyways, since most 2.5g/wifi6+ networking drivers aren't included in the installer.
I am repping Rufus here, not windows. Painful as it may sound, truth is that most people creating windows usbs would do so from windows.
The tool you're talking about might be Ventoy. Which is indeed a great way to make any type of bootable usb stick. Once installed you can just throw all sorts of isos (and more) to your usb drive and it'll generate nice grub menu to pick from.
You'll just have to use the classic oobe\bypassnro method instead to install windows. (The fact that you have to use a workaround to create a local account at all is still BS, there's no denying that.)