You can get a full list here: https://www.laptopmag.com/articles/macos-10-15-warning-32-bi...

tl;dr:

1. Click the Apple symbol () in the menu bar on your Mac's desktop.

2. Click on About This Mac.

3. Choose "System Report" at the bottom of the window.

4. Scroll down to the Software list on the sidebar.

5. Select "Applications."

6. Scroll all the way to the right to see the 64-bit list.

[0] https://www.macrumors.com/guide/32-bit-mac-apps/

You can sort on the "64-bit (Intel)" column to separate 32-bit from 64-bit apps.

When I tried this on my crufty main machine, Step 5 would yield a timeout and a very unhelpful error message. Works OK on my work machine. YMMV

[0] https://www.macrumors.com/guide/32-bit-mac-apps/

EDIT: formatting, punctuation

Looking at my list, it appears that gaming on Mac is truly dead at this point.

Yep, this release decimates the already unfortunately small library of games available on Mac. I don't use my Mac much for gaming but it was a nice thing to have available in a pinch.

that was helpful, thank you. somewhere else in this thread I mentioned that I had just updated to Mojave about a week ago. during the upgrade, the stock standard warning message about the upcoming 32bit noncompliance apparently did not include all the non compliant applications on the laptop, discovered Adobe, missed Steam.

This app supposedly lists all 32 bit apps:

https://www.stclairsoft.com/Go64/

Note: I haven't tested it.