I believe that getting second or third opinions is very reasonable after all it’s your life and you want the best outcome possible. I was diagnosed in 2020 when the pandemic started and with two small tumours in my upper left lobe I just wanted them gone. I wasn’t given any more than one option which was a lobectomy and I put my faith in the doctor and God, thankfully I am still here six years later. I noticed that you didn’t mention what other options you were given, also you would be asking doctors from the same group so you’re probably right that they will give you the same options, I think that you’re feeling insecure because you said that they presented your options in such a way that left you feeling doubts and I totally understand, it might be better if you were to go back to the doctor and ask them to go over everything again to clear up any fears that you have, it’s in your best interest and a very wise decision, best wishes.