What are these site designs called?

Question

Design

https://realtimeboard.com/
https://socialmedia.market/ru
https://we.rambler.ru/
https://hybrid.ai/
magsafe.ru
https://theperfectgridbook.com/
_ some definition of this direction in website design, or if it is a mixture, then a mixture of what directions? Material design, flat design, bootstrap or something else?
Distinctive features are the smoothness of the figures, rounded shapes in most examples, bright saturated colors, visual depth, dynamics ..

Answer 1

they have nothing in common, call it next gen web design

Answer 2

They just use trendy tricks.
You open any article like " Webdesign 2018 Trends " and there it will be:

• Vibrant colors
  
• Bold typography
  
• Blobs
  
• Minimalism
  
• And so on
  

Answer 3

Mobile First Web Design + Animated UX
Bootstrap4 example: here and here
Gradients: here
AND bonus ("two birds with one stone": design and device): here

Answer 4

Now it is fashionable to call such design UX / UI design. Although this is fundamentally wrong. This name must have stuck with it, because this style began to develop just the same during the popularization of the User Experience approach. It is characterized by rich colors and gradients, rounded shapes of elements, soft transparent shadows, a lot of air and empty space. Such designs can often be found on dribble. Although there is mostly creative work. In true UX, design focuses all of its efforts on content and solving the user's problem. Your examples mix different formats: landings, longreads, multi-pages. In general, this whole thermonuclear mixture can be called digital design. However, this style has already become boring for many.