Coolant Leak Question

So I have a 99 Prerunner and couple weeks ago noticed my radiator had a small leak at the top tank. Not big enough to leak down anywhere but it had just started to accumulate at the seam of the top tank and metal part. I noticed this when I changed my oil and I topped off the overflow reservoir as it was at the low marker. No coolant dripped down anywhere at this time. About a week later I put a new radiator in but before I even started the job I noticed I had coolant on my skid plates that weren’t there just 200 miles prior when I had them off doing my oil. The drip appears to be coming somewhere behind the ac compressor which I assume potentially coming from my water pump.
My timing belt was done along with the water pump about 40k miles and 5 years ago from a Toyota dealer. No issues since.
I cleaned off where the drips accumulated behind the ac compressor and where it had dripped onto the white plastic casing for the wiring harness just to the front right of the oil pan. Since I changed the radiator it so far appears to not be dripping down YET. My oil analysis came back clean of no coolant in the oil from the oil change but this was 200 miles before the leak appeared on my skid plates when I took the sample. Truck never overheated or lost any coolant to show low in the radiator when I caught the initial upper tank seeping.

My QUESTIONS
Could the cracked radiator or old radiator cap affect pressure in the system and it maybe forced out coolant from the water pump seal or maybe the weap hole on the pump? I am not familiar with how weep holes work exactly.

What happens if the leak doesn’t come back, I feel leaks don’t seal themselves unless the bad radiator or cap do play some kind of affect in pressure. But even if so, if the leak seeped out the pump I would imagine it will continue to leak and not reseal itself unless somehow if the dealer used the FIPG or a metal gasket that they can potentially reseat themselves due to normal pressures again.

Did me topping off the overflow when I had the cracked radiator affect the leak somewhere which looks like the pump area…

Baffles me that I had a small leak and now it seems to have stopped and not sure a radiator can affect that based on different locations completely