They claim no ads on steamdb, but they also claim "show what games have a thriving modding community" or something like that. Which implies linking to modding hubs, which implies linking to nexusmods, which I'd 100% deem as being ads.

Just because it's ads for another site within the corporate umbrella doesn't make it any less of an ad. I also expect that to be just the start of the enshittification. I fully expect them to remove features, then add "new" features that are basically the same as the old ones, but that time behind paywalls. So that they can claim that they technically aren't making free features paid.