Yep. If you read posts where people are asking for equipment reviews when building a pool, the answer always is the same - if you want to control your SWCG then the SWCG and Automation system must be from the same mfg. The big 3 have not shared protocols to adapt equipment from various mfgers. It is a big bummer for many of us.
There are some 3rd party automation systems (beyond my technical capability) that you can find on the forum that have been able to control a lot of equipment, but I think they all struggle to control SWCGs.