They are still alive and kicking in 2025, courtesy of the Steam Community Hub. To set one up, you just need the game's steam id. You can find this from the store page or its community hub - for example take this game:
Store Page https://store.steampowered.com/app/1419380/Invisible_Wings_Chapter_One/
Community Hub: https://steamcommunity.com/app/1419380
The id is 1419380, which you can then into the following steamcommunity.com link, like so:
https://steamcommunity.com/games/1419380/rss
Chuck this into your favourite RSS reader and you're good to go!