[laughing_man]

Everybody uses the 741's pin-outs, but nobody should be using the actual 741 for new designs. And that's been true for many decades.

[kilobaud]

Eh there are also decades worth of audio electronics designs which use the 741 and the decision of which actual part to use is often an aesthetic one. (i.e., assuming all other parameters are compatible then just use your ears). There are always new (hobbyist) designs being drafted around specific parts that are otherwise obsolete simply due to the musical character of certain parts