There’s a lot of cross-chain interoperable project existing already. By simply google searching it you will see a lot of project focus on this aspect on crypto. You can check Axelar project https://www.axelar.network/ as it promise to connect multiple project. It’s a decent project and listed on big exchange.

I think they just still categorized as bridge but they just make it simpler using their protocol since the current bridge concept is much complicated.