I will say, you need to use high quality lead-free solder when you could get away with decent lead solder. The cheaper lead-free stuff has been junk in my experience.
On a related note, I've had terrible luck with any of the Chinese solders off of places like Temu or Banggood. Even the lead ones were junky.
For leaded Kester44 is my favorite.
Set the iron temp to the datasheet of the solder...then never touch it.
For larger pads use larger tips...a lot of people get into trouble cranking things out of range.