How about Oblivion, Skyrim (which alone has sold more copies than all three of those put together, I suspect lol), Fallout 3, Fallout: NV, Fallout 4, Saint's Row 1/2/3/4/etc., Demon's Souls, Dark Souls 1/2/3, Elden Ring (notably Sekiro, that didn't let you create your character, did okay but not as well as some of those), do I need to go on? I've outdone the sales of the games you listed many times over lol.So name them?
The thing about "conventional wisdom" is it's often wrong. As evidence, I cite Witcher 3, Final Fantasy 7, Planescape Torment.
Planescape Torment sold a really sad number of copies btw. People claiming they played it is like people claiming they were at Woodstock lol. It's also the only game of the three you listed that even LETS you create your character. Like, obviously The Witcher, about Geralt, has a fixed face, gender, basic personality, bodyshape, and so on. It's weird to even mention that. I note the next major/main Witcher game, the one with the Lynx medallion teaser, will full feature full character generation because CDPR believe that's the way of the future.