I see a lot of posts about the "10 hour FSLogix" issue with kerberos ticket time. Our org is asking (telling) us they are moving to 4 hour kerberos tickets. Is that an "old" issue, or still something that is a problem? If it's still a problem, is it a "it might happen, might not" or a "oh, just hang it up, after 4 hours everyone's session is toast" kind of issue?

I had it happen for one customer, and it was only an issue because they didn't have/allow the automatic refresh of the ticket, as then, yes, it absolutely was an issue. That's what I remember, as it was over 8 months ago when I saw this, and it was happening in their case