I like what this guy did, talking about native methods. However it's too flexible for me, I prefer to have the most minimal functionality in order to ensure consistency in my code. But maybe that's just me. If the library opens up too many possibilities, then I have both the "problem of choice" when writing code, and also it's more difficult to refactor down the line if you want to change lib. Whereas using your own super simple solution (as long as it's sufficient), you can also do a simple abstract layer when including some vendor API.

https://github.com/eorroe/NodeList.js/

I've been using this for years – it's not the end of web development but an awful lot of projects don't need more framework than can fit in a tweet:

    let $ = (selector, scope=document) => {
        return scope.querySelector(selector);
    };

    let $$ = (selector, scope=document) => {
        return Array.from(scope.querySelectorAll(selector));
    };

My personal microframework:

    const node = (tag = 'div', attributes = {}, inner) => {
        const e = document.createElement(tag);

        for(const [key, value] of Object.entries(atrributes))
            e.setAttribute(key, value);

        if(inner) e.innerHTML = inner;

        return e;
    };

The premium version contains an additional:

    e.child = (a,b,c) => { const f = node(a,b,c); e.appendChild(f); return f; };