Sounds like the new tires to me or perhaps what the installer did?I just put new tires on my 2020 Tech - Firestone/Tirerack. It drove straight as an arrow with OEM tires, now it pulls to the right so I have an apt for an alignment on Monday. When I picked it up, the right tire was all dirty (as in real dirt) with scuff marks that looked like curb scuffs or similar. It didn't even look like a new tire.
You stated it “drove straight as an arrow with the OEM tires”. Now with new tires it needs an alignment? Sounds strange to me. I’m not saying the recent tire installer did anything, but new tires and now you have an alignment issue?? Sorry, that should not happen.