@Meza99 not exactly. I know you know it better, but given how many people are having such a hard time getting a hold over the new patch we should be more careful.
In motorsports as a whole decreasing tyre pressures will increase the amount of flex during corners, increasing the tyre's work rate and thus the overall grip - since cornering is key for performance. To a point, though: underinflated tyres will wear haphazardly.
That's why teams often push for lower pressures and Pirelli mandates minimum psi.
All work you subdue your tyres to will increase the temperature, but lower pressures on an easy lap will have lower temperature. That's for real life and the game both, isn't it?
Higher pressures will give you a higher baseline temperature, but will decrease the work rate of the tyres and thus also reduce the wear. To a point, though: too much heat will degrade the tyres.
Tyre wear has basically two sources: physical abrasion (aggravated by running low pressures as you increase the work load) and heat degradation (too much work, or too much pressure).
https://youtu.be/YmfN_F2LPQsWhat I remember you mentioning being wrong in the game was how much you'd gain in lap times by running high pressures. Lower pressures will give you higher wear and lower baseline temperature though, as it should.