Well, if you look at their site, the roadmap suggests that this project is not only very new but you can see that the mobile apps will be available in May 2024. So the above app may not be related to this project.
The good thing is that it is open source and decentralized.
Being only decentralised and Open Source would not mean that a project is good. If you know most of the hacks happen on the decentralized networks. There are a lot of things to look out for, the most important one is the security of the wallet.
Not it's not because it does not support Bitcoin, but it appears to be better option than metamask wallet if you are only interested in shitcoins.
I think it supports Bitcoin too. See the total list of coins this wallet supports.
https://rabbit.io/coins