I've also never had a 'slowdown' nor have I ever had the purported "all the charging cables crumble" problem people keep claiming Apple has materials engineering problems for.

I wonder if people are just too sensitive to a handful of milliseconds of delay and calling it "slowdown" and didn't grow up on an era of metal that took minutes to do simple tasks.

I think Liquid Glass is a general UX/Product blunder, not a deliberate evil masterplan to force users to buy new phones.

But the result is the same. And it's not the first time (see: the slowdown without user consent).