Improving my ci cd flow

Hello all,been working as IT admin, but mostly working around Azure devops. I been enjoying it, this my first job and doing anything related to devops. Studied CS,majored in networking, hate anything with heavy code development. Rn,the flow at my company is, the devs use 1 branch only, no PR (yes ik). They would push it to our on prem central repo, and from there i will take over. I will do some modification on some files so it can be built in the new age