So this happened today

My new (1200 miles) 2024 Mazda3 Carbon turbo.

I’ve been weekend roadtripping which means this car was parked at 10 different locations outdoors (by the highway and city streets, public parking, etc)

And I just today noticed this dent. I do not know when this happened in the last 2 days. I assume someone rammed into my car in when it was parked somewhere.

Anyway, how much do you think this dent repair and paint job is gonna cost me?

I’ve sent photos to a couple local shops, waiting for a quote.

Something I should go to Mazda dealer? Or local shop?

Should I report this to my insurance? I honestly have no clue how when and who did this.

Please advise a noob who never had to repair an automobile ever. Thanks folks, I love this car.