No - Goldeneye 25 was a completely different project, focusing on singleplayer. Just a couple of days ago it had a takedown notice and its twitter feed is now gone:

https://twitter.com/007GoldenEye25/status/129309061086227251... (the tweet announcing it)

They are now Spies Don't Die, and are making it a 90s-themed shooter that will be reminiscent of, but not a remake of, Goldeneye: https://twitter.com/spiesdontdie

The comment I replied to said they were playing a multiplayer-only version. I'm not sure you're responding to the right comment?

I think I misread the replies, thinking the Source engine remake comment was referring to its parent comment (which was Goldeneye25, not Source.)

Gotcha. Hadn't heard of the projects you linked or the parent. Had no idea there were so many!

Seems likely. And did I really regularly play it? I don't think I actually did. Maybe I just did for like a week and remember it well.