My experience:
The other elders definitely didn't want to have much to do with me. A few of the younger ones or ones that were appointed after I stepped down still chat with me and make occasional jokes about me being an elder again.
COs - I haven't spoken to a CO since I stepped down about 10 years or so ago. LOL - they literally don't even say hello and just walk right by!
Congregation - The folks that I used to be friendly with still speak with me. The biggest difference is the lack of social invitations. We maybe get invited to 1 or 2 things a year when I know there are folks getting together quite often. But, in their defense, often those impromptu plans are made at meetings and service which we really aren't at. So, out of sight out of mind. And once that pattern emerges, they don't even think about us anymore.
By the way, I haven't commented in years, don't sing, etc. I'm sure everyone notices and silence is the best result at this point. At some point, I will quit going altogether but there are some reasons why that doesn't work to my benefit at the moment.