Tier 5 visa expiry

Hey Everyone!
So my tier 5 YMS visa expires on March 2nd and I a leaving the country on March 1st to work in Europe.
I have a few questions though and if you could help out that would be great!
1. I will be working right up until my visa expiry. If I send my invoices in to my employers, am I still able to get paid into my UK account? Even if it’s after my visa expiring? As technically I did the work when I was legally still allowed? Or do I need to have closed my bank account before my visa expires and find another way?
2. Is there a certain bank that is good for international pay if I am getting paid in Europe aswell? (As a professional )
3. I am planning on coming back to visit my boyfriend in May - approx 2 months after my visa expires , for about 3 weeks but will have a flight booked out of the UK as I am working in Berlin in June. Do you think this will be ok at the border? I will also be in the process for applying for another visa (exceptional talent) and will have evidence of this at the time.

Thanks for the help everyone!!!!!

You can be paid after your visa expires for work you did before it expired. No problem there.

Bank - don't know.

Coming back - it's going to look suspicious. The border officer may take some convincing that you're going to leave. Bring proof. They'll ideally want you to wait for the outcome of the exceptional talent visa. So make sure you can prove you're only here for 3 weeks and will not work, plus have ties outside the UK and have sufficient funds to support your trip.