This is sad news to all Trust Wallet users on iOS devices.
Unfortunately Trust Wallet is going to remove it dapp browser on the Trust Wallet app on app store to comply with regulations.
The news was announced on Trust Wallet's official twitter handle;
"We’re removing the decentralized application (DApp) browser from Trust Wallet on iOS. This is required to comply with new App Store Guidelines 74 and to continue offering and improving our services on iOS."

But the good news is that, all Trust Wallet users who have funds in their account and have joined smart contracts or any Defi dapp on the wallet's browser has his or her funds safe.
Those who will be affected are the iOS users who will install the upcoming update. Android users will be unaffected.
Trust Wallet aims to release new update in the coming weeks ( June to be precise) but the actual date is not yet set.

Regardless of the actual release date, the next Trust Wallet update on iOS will remove the DApp browser.
Trust Wallet is doing so to comply with iOS new rules that forbids the use of Dapps on the app store.
Soon I will provide you with full details on how you can use Dapps on iOS without being affected after Dapps are removed from the app store.
But if you have an Android device, just import your Dapps to the Trust Wallet for Android.