Xtreix Currently, it works with all security restrictions enabled, I haven't yet had a crash that would indicate a memory vulnerability with MTE enabled, so that's a good sign,
The developers of Tor VPN fixed a memory corruption bug that was reported by a GrapheneOS user. Or at least, it's not present anymore. Might've been a bug in onionmasq. A Tor VPN developer commented on the report and made clear early on that it needed to be fixed. It took a few months, but on the other hand Tor VPN is not intended for production yet. It shows the user a clear warning about being experimental when you first launch the app.
In contrast to Orbot, which has been aware of memory corruption bugs for even longer but show no sign of engaging with the reports about them.