I'm making a get request to the favicon and encoding it like so, which works fine for other types of files like svg, etc:

        $response = Http::get($faviconUrl);

        $manager = new ImageManager(['driver' => 'imagick']);
        
        if (str_contains($faviconRaw, '.ico'))
        {
            return response($faviconRaw);
        } else
        {
            return $manager->make($faviconRaw)->resize(32,32)->encode('png');
        }

I'm making a get request to the favicon and encoding it like so, which works fine for other types of files like svg, etc:

        $response = Http::get($faviconUrl);
        $faviconRaw = $response->body();

        $manager = new ImageManager(['driver' => 'imagick']);
        
        return $manager->make($faviconRaw)->resize(32,32)->encode('png');

In reply to @yookoala:matrix.org
ico is basically bmp format. ImageMagick should have no problem with the format.