Safari浏览器自动填充功能不好
“使用Safari的自动填充时，它不能同时填写用户名和密码。其他浏览器可以一次性自动填充，但苹果自己的Safari浏览器不能。这不是奇怪吗？”
iPhone 17 Pro Max, iOS 26
Since there is a special iPhone 17 Series for China, did you try to post your question in the Chinese Apple Support Community? Maybe other users are seeing the same result: