Tor has released Oniux for any Linux app to use Tor network isolation and prevent leaks at the kernel level. It offers many advantages over torsocks, so maybe this is a development worth following and thinking about as Delta Chat improves its Tor support.
I haven’t heard much about the state of Tor support in Delta Chat recently and I don’t know what the current state is, but I assume that the developers are quietly improving Tor support in core. It would be great to one day see Tor support built directly into Delta Chat as well as circuit isolation for each profile!
Related:
Multiple accounts in Delta Chat over Tor Necessitates Delta Chat Ensuring Tor Circuit Isolation