“'QVariant' object is not subscriptable” error during install
This issue during install appears to be the same as reported in https://github.com/linz/linz-data-importer/issues/146 and fixed by the patch seen in https://github.com/nextgis/quickmapservices/commit/b6ddcd83f0f91872df7662008ff1852e7e862aac.