[gonzalohm]

What about influencers promoting products? I don't think there are any flags indicating that it's an ad

[ClikeX]

Influencers are required to disclose ads in most places.

[xnx]

In theory, but it takes less than a minute on Instagram to find dozens of "influencers" violating this rule.

[LtdJorge]

In Spain (and I believe the EU), it’s required to indicate it.

[Aachen]

Can confirm in the Netherlands also. I'm not an influencer so I don't know exactly, but a few years ago there was either a crackdown, an expansion of the rules, or at least a big media campaign by the government to make the influences that focus on a Dutch audience aware of the rules surrounding promoted content

[layer8]

Influencers have been successfully sued in Europe due to covert advertising.