I’ve always used Free ver. of PowerISO to “mount” the disc image to a virtual drive like others mentioned. Anyone who’s emulated PlayStation 1/2 games would be very familiar with this format. Otherwise any old software released on CD format you’ll probably find as an ISO.
What else can you expect, when those site redesigns are usually driven by the desire for increased ad revenue. Even idiots who don’t know why, will know it somehow sucks more than it used to. Other times it’s just a blatant removal of loved features. Funny skit aside, the simpler explanation is enshittification.