Tyre pressure wisdom

[N0bodyOfTheGoat]

I run upto 40 PSI in my 38c gravel tyres if that helps, including when 'loaded' for touring. 85 PSI in the 28c road tyres.

What system weight, you and bike all ready to head out? I suspect a lot lower than ~112Kg for me and my light ebike that very rarely rides anything worse than rough tarmac!
What tyre model?
Tubeless, latex tubes, TPU or butyl tubes?