If you say oneg shabbos mattirs a Shabbos goy
It actually does for a d’rabonon (sh’vus d’sh’vus b’mokom mitzvah), but not every comfort and convenience falls under the category of Oneg Shabbos for this.
For example, the main foods for the Shabbos seudos do, but nosh doesn’t.
The poskim for the most part are in agreement that it is not muttar to ask a non Jew to turn on the a/c when it’s a matter of comfort (obviously, if there’s a health issue involved, some cases will be muttar).