Also @the OP
I've played supports in every elo but Bronze. (Ok, correction, every MMR. Not counting Masters/Challenger. I've gone against Diamonds in Ranked but I've never been Diamond so rip.)
Truth is you can be recognized pretty well as a support. Look at BunnyFuFu's Thresh or Madlife's Blitz.
Hell, I was playing as Support ("Support") Zyra recently and had my team going "wtf just go full AP we dont even care" and got honored up the ass because of how much I dominated.
But here's the thing-- a lot of supports want praise just for doing what they should already be doing.
Warding the map is just your job and I don't think being praised for it should just happen. Same with things like keeping your ADC alive as Janna/Raka (honestly with how overtuned Janna has been I think the main praise should be for just picking her lol).
Praise can definitely happen but I think it should be for the right things. Getting a godlike engage off as Leona. Blasting down a team as Vel/Brand/whatever AP Support you go. Pulling off a godlike hook, like when someone's mid-dash. Things like that.
But regardless, if youre doing your job well, who cares? Be glad you're not Jungling lol, not only will people not praise you a lot of the time but they'll blame literally everything on you.
As for honors, sometimes people do it for carrying, but idk personally I like to honor people based off attitude more than anything.
Just keep doing well, have a positive attitude, and you'll get recognized here and there. Just keep doing you.