Buying extended warranty here in Canada is a little different, you have to phone a few dealers to get prices. I agree, get ONLY the real MOPAR one. I had an extended warranty through a third party on one of my work vehicles. MAJOR pain in the butt to process claims, not worth it and the company paid far more for the coverage than they ever got back.
Outside my work vehicle, I have never had an extended warranty. Most of my vehicles, all variety of makes and models, were run to 250-300,000 klms, never had a major issue on any of them, general maintenance and service only. Bought my first extended warranty personally for the 2020 Grand Cherokee with the 5.7 my wife drives. Between the air suspension, 5.7 Hemi issues, and all the electronics I figure if this one has any issues it will be expensive. Have already has $1,500 in warranty work, new U Connect unit due to GPS going out, $1,000, new seat belt tensioner that was a very surprising $500 tab and a couple of minor fitment adjustments to the flares and trim work.
The MOPAR Bumper to Bumper, zero deductible, extended warranty covers 7 years and 115,000 Klms (72,000 miles) from in service date and was $2,300 Canadian when added in the second year of ownership at 24,000 Klms.