Comments that others could see my profile suggested that something other than my settings was the issue. Based on further research and testing, here are my findings:
LinkedIn has limits on the number of times that you can view public profiles without logging in. https://www.linkedin.com/help/linkedin/answer/69654
The LILinkedIn counter appears to be tied to the IP address. Turning off wifiWi-Fi and switching to cellular generates a new IP address and "fresh" access.
The LILinkedIn interface can be deceiving. My first two or three views in cellular opened a clean view. On subsequent views, a LILinkedIn "Join" window overlaid a dimmed out view of my profile. Then I noticed "See more" at the bottom of the screen. I scrolled and saw everything.