Some instructions are slightly outdated:
'We need sizes="32x32" for <link> to .ico file in order to fix the Chrome bug where it chooses an ICO file over an SVG.'
Explanation: this revers to an old 2021 bug which is already – for a long time – solved in Chrome.<p>Probably small typo, by editor of article:
'With just three PNG images in this minimum set, …'
Set contains an .ico, .svg and .png file -> SVG and .ico files are not PNG's.<p>For the rest very useful!