I am somewhat torn on this topic though....
At the one hand, I totally agree from the bottom of my heart that submission never equates to, actually it even doesn't come close to, being accepted for publications. There is too much uncertainty. At least in my field or adjacent fields, although we may have some general ideas where we may be able to submit the manuscripts to (and even tailor our writings toward the targeted audience), most of time it feels like lottery, despite that we feel like the manuscripts are close to perfection and we feel sick even by looking at them for 1 more minute. My colleagues and I have some interesting experiences: for one manuscript, we all thought it was going to nowhere. But we just sent it out to a very nice journal just to see how it go. Then, we got an Reject & Resubmit, and it got accepted very soon after we sent in our revision. However, there are a lot more times when we got some exciting new findings and spent lot of time on writing up and polishing manuscripts, it turned out that we had a hard time finding them a home. Usually, it takes about 6-12 months for our manuscripts to get accepted after we send out our drafts for review for the first time. (So, yes. that means, when you read our articles, even when there are only "in print"/"epub ahead of print", the findings are already almost 1 year old. We may be writing up new stuff now.)
At the other hand, I think even the manuscripts got rejected, perhaps the rejection itself is a very good topic to talk during the interview(?): what you have learned from this whole process? What do you think about the reviewers' comments? Are they reasonable? Are the problems raised by reviewers really major that kill the paper? Or just minor but the editors still decide to kill the paper? If the problems are major, what do you think you can do differently to improve the study designs? How other more senior team members handle rejection? What do they think about the reviewers' comments and the editors' decisions? How are they going to approach the problems? What are the next steps your team come up with? Redo some of the studies? Or if not, where are you going to submit to, and why?
Oh, just some personal experiences: some reviewers could be very nasty and not helpful at all (and sometime it feels like they are attacking you, not your evidence/arguments). If you get those trashy comments, try not to take them personal. Talk to your research mentor and get some social support. Also, if you get rejection, please remember it is very natural and you should expect that as the default. Even your professors still get a lot of rejections even they may be in this game for decades.
Good luck for your research!