I've tried it again on both Windows 10 and Windows Server 2022 and it reproduces every time. I have yet to see the site working properly on Windows Chromium.
Please try creating a fresh cloud Windows instance rather than using your usual computer so you can be sure you are seeing what a fresh user on a new computer would see. I have done so--this reproduces in the preinstalled Edge on a brand new c6a.large Windows Server 2022 instance in AWS. I can provide a click-by-click screen capture starting at the AWS Management Console if desired--I've found this is a good way to prove bug reports to companies and demonstrate that it has nothing to do with my computer.
Please try creating a fresh cloud Windows instance rather than using your usual computer so you can be sure you are seeing what a fresh user on a new computer would see. I have done so--this reproduces in the preinstalled Edge on a brand new c6a.large Windows Server 2022 instance in AWS. I can provide a click-by-click screen capture starting at the AWS Management Console if desired--I've found this is a good way to prove bug reports to companies and demonstrate that it has nothing to do with my computer.