I think wallets that support tor have their own in-app tor client, so if you use tor on the device level too that could be nesting tor within tor and break or be extremely slow.
If you already have tor at the device level then your ip is protected even if you use a clearnet node address in the app. The node only sees the tor exit relay ip. The difference is that you can see the node ip which is not a risk for you, only for the node provider.
If you already have tor at the device level then your ip is protected even if you use a clearnet node address in the app. The node only sees the tor exit relay ip. The difference is that you can see the node ip which is not a risk for you, only for the node provider.