I will answer in detail about US Visa process, then answer about rejection with my knowledge.I have interview appointment at the USA embassy as I have applied to a B2 visa to visit USA back in 2022. I am afraid to get a rejection for whatever reason that might affect my PR process also now I am waiting for the background check and eligibility steps as all other things finished.
Should I just cancel my appointment or it is ok to go even If I got a rejection?
Also does anyone know if they stamp the passport with a rejection stamp or something that might cause problems later?
Firstly, US B2 visa is 10 seconds interview process. Just be prepared with basic questions,
1. When did you reach Canada?
2. What is your Current Status?
3. When will you return to Home country? ( before expiry date of current permit)
4. Purpose of your Visit to US?
5. Do you have any family member in US( if you have mentioned yes in application submission, reply the same. if No, then it will be more smoother) ** very important question.
6. What is your financial backup ? (Job, Paystubs, bank statement).
They might reject your application for any wrong information, but I don't think there will be rejection stamp on your passport.
People got rejection in Study Permit, Work Permit and still got PR, which is Canada Visa's. This is US this shouldn't impact your PR by anyway.
In case of rejection, you might have issue in reapplying but not for immigration unless if any big false info highlighted and it was flagged.
I will say, if your information's were genuine, then go-ahead with the interview. good luck.
Please look for other's response too.