I skipped this question because slubman had already answered the questions related to Not Use VPN.
Regarding why this option is no longer available in the UI, please refer to:
We are also discussing with the product team whether this option can be added back in the future:
In our previous guide, we also provided another method: "Use a Non-Functional WireGuard Profile as a WAN Fallback", which allows users who are not familiar with SSH to achieve a similar result:
Of course, downgrading to v4.8 and then upgrading to v4.9 while keeping the configuration is also an option.