Not sure what you mean by "diverse". There is a lot of legit macOS software, which is 32 bit only and no longer updated - for example because the company went o

Not sure what you mean by "diverse". There is a lot of legit macOS software, which is 32 bit only and no longer updated - for example because the company went out of business or couldn't justify the effort for a port. Cutting support off for these programs is a harsh step. While I can understand that Apple doesn't want infinite backwards compatibility, it hits a lot of users. One reason for this might be the preparation for the bigger switch to a new cpu architecture.