You can use Ambire Wallet to connect and use multiple dApps on various chains. There are two general ways in which you can connect to a dApp with Ambire Wallet:
Connect through WalletConnect
You can use WalletConnect to automatically or manually connect a dApp with Ambire Wallet. You can find a step-by-step tutorial on how to do that here.
Add a dApp to the Ambire dApp Catalogue
You can add a dApp to your dApp catalog and easily access it in a few easy steps. You can learn more about the dApp catalog and how you can add a dApp to it here.