ah yes, I can see where the boomer thing is coming from. However I differ between GIFs and the intention/use of the GIF. Those 50+ boomer greeting squares are terrible I am sorry. Never liked them and I hate when ppl send or show them to me. However, I feel like it was seen differently in the past or perhaps I was just younger and happy about everything.
I love GIFs. Not the square ones (although many are fine, memes etc) but WEB graphics, people's personal projects and artwork. I love animation in general and that's where GIFs fall in too, even if the format isn't mp4. However I do hate the quality of it in some cases where you either have a giant file or very low-quality GIF.
One thing I do dislike is that they give the ability to create flashy crazy websites easily. Not a fan and highly annoying. I also feel like most older graphics especially are the fastest. I occasionally browse gifcities and get jumpscared at least once. Many GIFs are very cool however. Especially the 3D "pixel" stuff is pretty neat.