It's a shame that the ROS / VaraC software hasn't been ported to Linux. Surely the fact that the licenses have a price is, in large part, the reason. At one time, its use was limited/banned in the USA, for more than debatable technical reasons, but it seems that this is already overcome when it is used as a de facto standard in emergency communications, precisely due to its excellent operability.
Using it on wine can be done, I do it on my PC, but it is still annoying, and each new version requires a lot of work. It may be that in a closed environment like zBitx/sBitx it is easier to port it. In fact, what really complicates life is the ROS modem, I think that VaraC would be less complicated to move to Linux, but as long as the modem is not rewritten we will have to live with wine.