Ubuntu 22.04 receives an IPv6 address under the same Wi-Fi router but is unable to access IPv6 websites, while Windows 10 behaves correctly

In my office network, I have a TP-LINK wifi router. All the ipv4 network works quite well. In the setting of the ipv6 in the wifi router, it is set as the bridged or pass through mode(see the document here: How to set up an IPv6 Internet connection on the TP-Link Wi-Fi Routers ). Under Windows 10, ipv6 works OK, I got the correct ipv6 address(I got two ipv6 address, one is started with 2001:xxxxxxx, which I think is the global ipv6 address, and another one is start with the fe80, and is the local link address. It can access the ipv6 websites correctly. Under Ubuntu 22.04, I see it also got two

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