How much savings should I have by now?

Looking for a general rule of thumb to follow.

My research is showing that by age 30 you should have at least a full year of your salary saved up, but I realize this may not be realistic for everyone due to years spent in undergrad & grad programs before being able to start a career rather than starting a career right after high school.

I was in college for 7 years and soon after graduation got a full-time job near the end of 2019, so presently I have 4.5 years of work under my belt.