

In the 90s series too, especially the women.
In Voyager, every main cast member is wigged to some extent, even if just false sideburns. Except apparently the Doctor who grew his own pointy sideburns and was clearly not bewigged on top.
Robert Picardo talked about this on I think a podcast I listened to several years ago, so sadly I can’t link to the source as I don’t recall where it was.

This system is also used in Disco S3-5 and Starfleet Academy.
All the 23rd Century Trek has no consistency episode to episode.