Do men actually like flat stomachs or is that just a girl belief?

I’ve always wondered this because I hear girls talking about flat stomachs, but never hear men saying they desire or require that. Do men prefer completely flat bellies, a little something to grab, or a handful? I know it’s objective, but I’d still like to hear you guys’ opinions, especially if you’re under 30 (since that’s my age group).
Do men actually like flat stomachs or is that just a girl belief?
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