Counterpoint: I've done 3 and all went through without drama.

You’re not providing adequate documentation then. I’ve charged back major companies before without issue when they were at fault and refused to help.

With what credit card provider?

I've done it multiple times when a vendor wasn't behaving fairly and it always went through.

I don't recommend doing it to a vendor you plan to have business with again in the future as they might ban you (eg food delivery apps)

I’ve never had an issue with charging back when they fail to deliver the product

Get a credit card that isn't dogshit then. You can absolutely charge back.

Maybe you should try Paypal next time, if allowed by the seller

The one time I thought it would not work it did. Home depot rental generator that failed to run under load; store manager refused to test the unit under load as it was against store policy. Refused refund and instead gave me a $50 off coupon. I then called Chase, explained the situation and charges reversed on the spot. I took the coupon and bought a nice corded Milwaukee sawzall.