Coming out of hibernation.

It could be the sway bar. If the link is bad enough to affect ride height on one side that could affect the alignment. If it was a little worn or a little loose it's probably not the cause though.

The upper control arms sit on the shock tower and bolts down through two slots. Most cars use shims or an adjustment of some kind. On those cars the bolts just hold the shims/adjuster in place. Our arms just sit there. One piece of steel sitting on another without any locking mechanism. Other than a couple bolts being tight enough. To align them you loosen the bolts and slide the upper arm in our out. This pivots the ball joint front to back and some in/out. If the bolts are not tight enough the arm can slide. On the Mach I it doesn't move around. The bolts are tight enough I couldn't break them loose with a half inch ratchet. Yet it moved at some point before I got it. I can clearly see that wheel sits askew. The rear bolt is all the way inward on the slot. They usually sit somewhere in the middle. I think this car flew and landed hard but the same can happen just hitting the brakes if those bolts are not tight enough.

If it suddenly happened new tires can still be the cause. Honestly it's more likely if it was sudden onset. Front end parts being worn out is usually a gradual onset. Since everything else appears ok I would try the left to right tire swap. I have had it fix several cars over the years as a service advisor. Not a daily occurrence but often enough I would try that before diving any deeper into it. Belts usually break from a pot hole but I have had customers swear they didn't hit one. Our cars tend to sit for extended periods as well.

Always remember NEW is an acronym. It really means Never Ever Worked.

I see a lower strut rod in that pic. Are you replacing that too?

If you have a digital level, you can check alignment yourself... At least if left and right are nearly the same.
I had pulling to one side two times:
- 4 drum brakes; cold no issue / warm pulling to one side; it was the adjuster setting of the shoes
- always pulling to one side; caster was of at one side

Glad you found something. At this point don't stress over the pull. It needs realigned anyway with the strut rod being removed. A competent shop will double check for play before aligning it anyway.

If that strut rod bushing was bad that can cause it to pull. Once you replace the strut rod bushings do some hard stops in forward and reverse to make sure it's tight enough before they align it. I did not and it needs another alignment after I snugged up the bushings.

And think about alignment values for the shop... the original alignment doesn't fit modern tires.
My current setup is somewhere around this:

Nice pics, but I'm still waiting for the fully nude shots. That hood is sweet.