Canada here. Own a 2024 CX-5 Signature Turbo which is the top model of CX-5 in Canada. I'm about 5'9", slim build and the CX-5 seat fits like a glove. Wife and I drove 8 hrs to get to her sister's place for a visit. No discomfort in the butt or thighs noted. Discussion about the fit/comfort of car seats is like asking 6 guys to try on the same pair of jeans and give an opinion. Too tight in the crotch, makes my butt look fat, too long or short, etc.
Personally for me, there are so many positives in my CX-5 that I can afford to overlook the few minor gripes. Our CX-5 Signature is better equipped than our neighbor's $85K M.Benz. Took him out for a test drive few months back and he was blown away by what Mazda is able to stuff into the vehicle in way of upgrades and still sell for $30K+ less. He indicated that his Benz has a more quiet, cushy ride but would give that up in exchange for the Heads-up display which is not even included in his model. Apparently part of a $5K "upgrade" on an already $85K SUV.
Gone off track here but just indicating that you might find the vehicle with the "perfect" driver's seat but are they heated and cooled and at what price?