Archive / tag / category pages and SEO - do I need to worry about them?

I have a wordpress website and I just ran it through HubSpot's SEO tool, and all of the errors/recommendations I received were from random auto-generated URL's

i.e.

Blabla archives

url: domain dot com slash tag slash word

issues: duplicate content, no meta info, etc.

Of course all of the content that I create pays super close attention to this stuff, but whats going on with these archive pages? should I delete them? noindex them? optimize them? ignore them?

Just wondering how tags and other random auto-generated wordpress URL's affect SEO and Google's crawl budget and what I should do about them.

This is kind of 2 separate questions but are tags and categories important for SEO? I dont really use them but sometimes ill randomly assign tags and categories but I dont understand how they work.