Those emails could be helpful for you. However, if you really don't want them, can you unsubscribe them? Maybe also report as "spam"
Block them if you can too.
TBH I'd advised against them. Most may not be useful, but if you do go through them once in a while, you'd find something useful. I usually just mark them and delete them personally. Doesn't take too much of my time. (Especially I have personal/ spam email, formal email, school email all separated)
This is to ensure whenever I sign up for something I use personal/ spam. I use formal email for school/ work. I use the school email for any school related.
I hope this helps.