How will the restrictions on Tiktok and Wechat in the USA. cause a growth of VPN? I don't catch your reasons for the statement. In China, there are strict control and management from Chinese governments on local Internet but in the USA. things are not like that. TikTok or Wechat is only one of app, even big ones but I don't think they change anything on the Internent globally.
There are news that Microsoft, Twitter plans to buy TikTok.
I want to say that a decentralized VPN will be in demand in any case !
This is only one of the reasons . I myself use it on my Android smartphone and I must say that it is quite convenient