Test well your community website with Safari on a Mac
I suggest Arlo tests better its website with Safari on a Mac.
I have had a few situations where I cannot post a suggestion or a comment on my Mac and I have to go on my Windows machine -- or just give up.
macOS Mojave 10.14.3
I have not tried other browsers on Mac. If I have an issue I just go to my Windows 10 laptop with Edge where normally things are fine for me. I have both on my desk, but the Mac is my primary one.
Issues that I remember:
a) inability to retrieve a saved draft on Mac
b) posting on Idea Exchange that would continue to cycle on the post screen every time I pushed Post
Thanks for the detailed information. Are you experiencing the issues you mentioned when you're browsing in Private Browsing mode on Safari? Have you tried clearing your cookies and cache and see if that helps as well?