[Ditto]

Even if it's just a micro-turbine, you would think the exhaust would be significantly hotter and under more pressure than a combustion engine.

Probably higher pressure, but I doubt it is any hotter than an IC engine. You are burning a hydrocarbon fuel either way.

[dangerdoc]

“Probably higher pressure, but I doubt it is any hotter than an IC engine. You are burning a hydrocarbon fuel either way.”

If it is engineered correctly, I would think the exhaust would be a little cooler, it is extracting more of the energy to do work and ejecting less as waste heat.