Good to know.

Say, is there a bug in Chrome Canary 132? When I opt into customizable <select>, "change" events stop firing.

    <style> select, ::picker(select) { appearance: base-select; } </style>
    <select>
    <option value="one">one</option>
    <option value="two">two</option>
    <option value="three">three</option>
    </select>
    <script>
    document.querySelector('select').addEventListener('change', e => {
        console.log(e);
    })
    </script>

And another. When I add <selectedoption>, I get a warning in the console, "A descendant of a <select> does not follow the content model. <selectedoption> one </selectedoption> "

    <style> select, ::picker(select) { appearance: base-select; } </style>
    <select>
    <button><selectedoption></selectedoption></button>
    <option value="one">one</option>
    <option value="two">two</option>
    <option value="three">three</option>
    </select>