I said most of this in an earlier post with one notable exception. Most commercial fixes are not a single ingredient. And, they ALL contain Sulfite while most contain Ammonia. Therefore there is odor at either end of the pH spectrum, namely 4.5 or 8.0 approximately. The ideal is between about 5.5 and 6.8.
AFAIK, both Tmax and Trix use the same gelatin and the same hardener and therefore should respond about the same to temperature variations. Kodak has processes for these up to 90 degrees IIRC. Sometimes, very soft water coupled with extreme changes in temperature may cause problems, but it should be about the same for either film all other things being equal.