Its funny how gradients were cool in the 90's. Then became uncool and now they're cool again. Now everything is full of gradients - Stripe, Open AI, Apple's new iPhone promotions/wallpapers come to my mind.
I have a question - why are graphic designers all about trends? Whether it is brutalist design or back in 2010 it was all this material UI and flat design. Gradients are popular right now and everyone is jumping on it. In my view today's web designers are decorators than actually understanding the purpose and utility of design. You can't produce timeless design when simultaneously you're chasing trends.