Unfortunately the battery temp limits are often too high and let the heat at go really high which shortens the lifespan of the battery. If I let my Pixel fast charge as it pleases, I’d have drastically reduced battery capacity today. Instead I use USB-A to USB-C cables and older chargers to limit the charging current and therefore heat.
Pixel 8 Pro here. It just did a bulk charge session at peak 5A, average 4.5A. That’s nearly 1C. I didn’t record the temp but just like yours it was noticeably hot. I only fast charge when I’m in a bind.