Hello,
I have a Steam Account and I have put all my settings to public and when I refresh my GoG list with this link https://www.gog.com/connect , I don't see Metro Last Light Redux and Metro 2033 Redux.

What is the problem ? Please help me, I don't want to buy a GOG copy for this problem.
Please check my attached picture

It seems you have found a bug.

Steam api processs limited number of requests at a moment.
So you should refresh gog connect after few mins.
Don't worry.

ok, I will refresh my gog connect tonight and see if I found one game.

I also have problem with game visibility: GOG Connect don't see my SINS OF A SOLAR EMPIRE: REBELLION that was bought several months ago.

I was able to connect Frozen Synapse but not Sins of Solar Empire even though I have both.

Connect isn't seeing my copy of Starbound.

I've just added 10 other games, and I've added lots of games without a problem before.

I also have the same problem because I have Starbound in my Steam account but GOG Connect says that I don't have it in my account.

I too can't connect Sins of a Solar Empire: Rebellion, which is strange because it detects Witcher 1 & 2 just fine.

EDIT:
I have created a post specifically for Sins here:
https://www.gog.com/forum/sins_of_a_solar_empire_rebellion/gog_connect_not_detecting_sins_in_steam_library

Okay now I did connect Starbound to my account, I just had to wait for 30 minutes and refresh the page and then it work.

Same problem here, connect doesn't recognize my Sins of a Solar Empiure: Rebellion Ultimate Edition on Steam

As I only see Metro 2033 Redux and not Metro Last Light Redux in that list, I guess it just was a mistake by the first poster. So far I had no problem to connect all my games. Before I miss something, I see following 20 games (5x4) available on the GOG Connect page at the moment:

5 days to activate
- Alien Shooter
- Broken Sword 2 Remastered
- Broken Sword 1: Director's Cut
- Eador: Genesis
- Frozen Cortex
- Frozen Synpase
- Huniepop
- Metro 2033 Redux
- Moto Racer 1
- Moto Racer 2
- Moto Racer 3
- Risk of Rain
- Sins of the Solar Empire: Rebellion
- Starbound
- Vangers
- Worms World Party Remastered
- Zombie Shooter

29 Days to activate
- Witcher 1
- Witcher 2
- Witcher Adventure Game

Same problem here.

Got Sins of a Solar Empire with all DLC on Steam but it doesn't pop up on GOG Connect. Contacted support and I'm waiting for a response now.

After 3 hours
done for Metro 2033 Redux, Added to my account. ^^