Bypass China still leaks DNS

[windstander]

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Describe the bug 5.3.4
I select bypass China route and it still leaks DNS.

To Reproduce
Steps to reproduce the behavior:

Expected behavior
Avoid DNS leak when choose bypass China without bypass LAN.

Screenshots
If applicable, add screenshots to help explain your problem.

Smartphone (please complete the following information):

• Android HyperOS 3.0.306.0
• Device: Xiaomi 13 Ultra
• Last version that did not exhibit the issue: [not applicable]

Configuration
Put an x inside the [ ] that applies.

• IPv4 server address
• IPv6 server address
• Client IPv4 availability
• Client IPv6 availability
• Encrypt method:
• Route
  • All
  • Bypass LAN
  • [X ] Bypass China
  • Bypass LAN & China
  • GFW List
  • China List
  • Custom rules
• IPv6 route
• [X ] Apps VPN mode
  • Bypass mode
• Remote DNS: 1.1.1.1
• DNS over UDP
• Plugin configuration (if applicable): Cloak
• Auto Connect
• TCP Fast Open
• If you're not using VPN mode, please supply more details here:

Additional context
It is said only Bypass Lan and Bypass LAN&China will leak DNS.
https://browserleaks.com/dns
Firefox