Squish expects the license to contain the licensed GUI toolkits ("wrappers"). In the early LicenseClient mockup, these were still included if I remember correctly.

QLS 3.2 does not seem to supply licensed wrappers. I cannot tell if they are simply missing from the license file or if there is more to be done for this.

The complete list of wrapper flags Squish 8.0 supports is here (ignore Coco and Baseline):
https://gitea.froglogic.com/Products/squish/src/branch/master/src/shared/editions.h#L26