Hello!
Whilst I can’t confirm whether they will sponsor visas for vacation schemes this cycle, it is always worth emailing the graduate recruitment team to double-check, especially if you have a strong application ready to submit. There’s still a while until the application deadline, so there should be plenty of time for them to reply and I’m sure they’d be more than happy to confirm for you
I’m sorry to hear that your last AC felt isolating - being the only one attending virtually must’ve been tough, but it’s super impressive that you made it that far!
Whatever you decide, wishing you the best of luck. You’ve got this!