I just purchased, and first Subaru as well.
You will likely be offered a varying set of packages, including everything from a combination of items that include extended warranty, prepaid maintenance, credit insurance, gap insurance, etc down to just the extended warranty and several combinations in between. They may try and only show you the impact on the payment, but of course, you want to know how much the total price of any of the packages is, rather than just the impact on payment (again, if you have interest in knowing)
In case you are not aware, you can add Gap coverage through most auto insurers for the term of your current insurance policy (usually annual or 6 months) for a lot less than paying for it with whomever is financing the loan, etc. Your insurer may also have an option for "new car replacement" that you can check into. I'm not advocating for it, just making you aware that instead of paying several hundred dollars for it, you can just pay a very minimal amount on your insurance policy for it and then drop it if/when you feel you no longer need it. The only time I'd think someone would consider it is if they finance 100% of the vehicle along with sales tax, etc, and there is concern of being upside down if the vehicle were to be totaled out.
I personally would never consider credit insurance, or anything like that.
If you have any interest in the extended warranty, check to see if the warranty they are quoting is a 3rd party or a direct from Subaru extended warranty. They likely have both available (3rd party and Subaru), but may not quote you the Subaru first party unless you ask because the dealership likely makes more on the 3rd party coverage. There are various lengths of extended warranty (mileage, years, and potentially deductible per repair).