>>tyu2+zj
I really don't think that's true. For one thing, anything beyond static content sites are just not going to work. And even content sites could well be unusable without their layout CSS. I really don't see the point in subjecting oneself to such hassle.
I would suggest that most websites work better if you have javascript and CSS enabled, since that's what they were designed for, but use an ad blocker like uBlock matrix to remove the ads.