EGT is no longer part of the revised turbos - hence your ECM was (should have been) updated to account for that change. Unfortunately, the updated turbos do not seem to be faring much better than the '16-17 version. Keep an eye on that smoking issue, and your oil and coolant levels - also consider shortening your OCI to 3-5k (adding a Blackstone oil analysis is also good CYA.)
Aside from that - standard turbo best practices apply (e.g. do not run hard and turn off your engine - let everything stabilize and cool down for a few minutes.)