Unsupported Browser

Perhaps the following is relevant:

Update to the latest version of Safari - Apple Support

If a website says that Safari is out of date even though you're already using the latest version of macOS or the latest version of iOS or iPadOS, there could be an issue with the website. If you’re sure that you want to use the website, contact the website owner or developer.

I am sorry, but your question makes no sense. Please click on the link below, and read the information there so you can respond with specific information we can evaluate and respond to.

Writing an Effective Apple Support Communities Question -  Writing an effective Apple Support Commun… - Apple Community