I can see your desire to use TikTok without having to use a VPN or proxy, but there are some restrictions and possible negative effects to be aware of when sharing the VPN connection from your Windows laptop to your iOS phone:
Challenges:
Performance can be negatively impacted by tethering your phone to your laptop's VPN, particularly when streaming or other data-intensive activities are involved.
Battery drain: Using a VPN while sharing a connection can seriously deplete both devices' batteries.
Complexity: Compared to utilizing a specialized mobile VPN app, this solution may be more complicated to set up and maintain.
Restricted compatibility: Not every VPN program can share or tether connections. So, if you think of buying a VPN, I prefer you to go for PureVPN or NordVPN.
Potential detection: TikTok may be able to identify certain traits of tethered connections or odd device profiles, even though it is not 100% accurate.
Other options:
Dedicated mobile VPN: If you own an iOS device, think about utilizing a reliable mobile VPN app. This provides a more straightforward and possibly efficient solution.
Proxy services: Look into proxy services made especially to get around TikTok's limitations.
Recommendation:
I advise looking into mobile VPN options specifically tailored for TikTok access or proxy services. These provide a reduced complexity and detection risk solution that is more likely to be user-friendly and performant. Before deciding on anyway to get around limitations, make sure you are aware of the terms of service for the platform as well as any potential repercussions.
It's up to you to decide in the end. Choose the strategy that best suits your needs and comfort level after weighing the benefits and drawbacks of each.