@Carlos ********
Our A320’s had cargo hold heaters. ~23c sounds about right for a cabin temp.
The 787 was even more advanced and had multiple zones including a specific hold that could even be turned into a fridge for perishables. Certainly not a design afterthought!
More likely a small turboprop would be noiser, bumpier and have a less sophisticated heating system such as the cabin air vents you mention.
The level of pressurisation you experience would be about the same between turbo props and airliners (8000ft) regardless of how high the plane actually flys. The latest long haul 787/a350’s are pressurised to an even lower altitude (6000ft) which might be a consideration to what airline you choose compared to an older a
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