Nope, at one point I created a LinkedIn account and my email address immediately started getting spam.
I use unique emails for things. Technically, the emails don't even exist, but I have a rule that any email that doesn't exist will be forwarded to my actual account. So the made up email I used for LinkedIn was unique and had only ever been typed into the LinkedIn service.
I've been doing this for a while, and generally most things don't seem to lose your email. There have been a few that were probably compromised, they were safe for a while then one day they were lost - this is more likely a malicious actor accessing the website's database. However LinkedIn is one of only 2 websites I've signed up for that have instantly resulted in spam - the other was a porn website.
LinkedIn have always been shady as fuck. When they first started out, they convinced everyone to input their email login details. LinkedIn would then access your email account and send emails to all your contacts asking them to join - all coming directly from your email address, not theirs. That was how LinkedIn built its market share. Back in the MSN Messenger days, LinkedIn emails were pretty notorious, but also everyone was pretty carefree online. They were perhaps one of the first services to demonstrate that you really should be careful what you share online, even if it is a "legitimate" service. Not everyone learned that lesson.
The compromised email thing happend some time after the MSN Messenger days, and I admit that I was one of those gullible baffoons who fell for the login thing initially (I've had 3 LinkedIn accounts, my first, then the second which was unique but instantly spammed, then my current). I think the porn website was more or less around the same time as well, so it is possible that LinkedIn was compromised as well as the porn site, such that anyone who signed up for either service (and maybe some others) would instantly get added to a spam list - not by the service but by the malicious infection. However, it certainly would fit their MO for LinkedIn to just sell email addresses directly.
Nowadays, I do get emails to my current LinkedIn account email that clearly should not have been shared. These tend to be more focused on the industry I work in, instead of generic spam. Recruiters almost always contact me via messages.
Don't give LinkedIn any more information than you have to. In particular, I would encourage users to share their CV's off platform.