Are EEAT and technical optimization the top priorities after a core update?

[Sophia_M]

I manage the digital content for a mid-sized B2B software company, and after a recent core algorithm update, our organic traffic has plateaued despite consistently publishing new blog posts. I suspect our foundational SEO strategies are outdated, as we've focused heavily on keyword-stuffed content without a clear topical authority or adequate technical optimization. For SEO professionals who have successfully adapted to the current landscape, what are the most critical technical and content-focused priorities I should tackle first to rebuild our rankings, and how do you balance the need for comprehensive, in-depth content with the user's desire for quick, actionable answers? I'm particularly confused about the role of E-E-A-T for a technical niche and how to demonstrate it effectively.