Stroller and car seat question

Hi everyone! I have a specific question. I won't bore you with the details, but I find myself in a situation where I could have a car seat for my newborn and a stroller for him, but the car seat is not compatible with the stroller (meaning it's not a travel system).

Has anyone dealt with that situation? With my two kids I had a travel system stroller and it was nice to just take the car seat with my newborn and click it into the stroller, but I don't know if it would be a dealbreaker to now have that anymore.

I'll appreciate your advice. Thank you so much!