It has been asked in the ESTA for a long long time, afaik even before Trump.

But can we please remember that there is a huge huge difference between being asked to provide it optionally, to being required to provide it.

Okay, let me be even more clear then: it is required to fill out every social media handle and every phone number you've used for the past 5 years as a part of the DS-160 form (AKA online non-migratory visa application for countries not covered by ESTA).

That's been the case since 2019. Before that, asking to hand that info out even voluntarily was widely seen as an overreach. Now, it's required for countries not covered by ESTA and still voluntary for ESTA countries.