There is r/ExperiencedDevs but some people join with a definition of "experienced" as two or three years.
I was on a consulting team years back and everyone was 'senior developer' - I had 26 years, another guy had... 4 years. I always thought it was weird to be presenting us to a client as being on the same level, and one client mentioned it to me behind the scenes, but... wasn't my call.
Whaa? If you only have two or three years, you're still a newborn baby. :D