Volvos are always very slow to gain aftermarket tuning support, and the shift to flex ray communication from canbus has put everyone back to square one with development.
The fact that Heico have to run basically a piggyback ecu, is a sign of how tricky it is to keep the stock systems happy.
The EPA of various countries are also cracking down on aftermarket tuners.
Eg: APR discontinuing their downpipe upgrades due to EPA pressure, and lawsuits in the USA due to diesel emmisions bypass.
https://www.thedrive.com/news/31848/epa-declares-war-against-makers-of-emissions-defeat-devices