Alternative Browsers

Midori (Linux version) seems to work, but the normal login screen won't display my name if I enter four or more characters. I have to enter my full email address and password to be able to login.

I use Brave. No issues for me. I have also used the DuckDuckGo browser on my phone. No issues there either.

I use Waterfox 2019.12 (64-bit). Sometimes the FreeToastHost club url is blocked. Once I add an exception, all Club websites become available. One size fits all. I did not notice whether the block was a security block or a privacy block. Once I allowed the exception, I could not test on any other Club websites, else I would provide screen capture of error message.

I have used Waterfox since FTH 2.0.

I have been using Opera for about 2 years and I have never noticed any issues with the FTH sites. It behaves the same as Chrome.
I use Samsung Internet on my phone an other than "finding" the cookies notification, I have had not issues.

Same. I have to revert to Chrome for club website activity.

You are able to log in to FTH using Brave? I am able to view the site just fine, but unable to login with Brave.