So Embarcadero broke the "Default layout" (now always enforces a new "Standard Layout") upon IDE startup in 10.

So Embarcadero broke the "Default layout" (now always enforces a new "Standard Layout") upon IDE startup in 10.2 Tokyo, and commented on the bug report https://quality.embarcadero.com/browse/RSP-20138 with "Jira-Quality Sync Service added a comment - 29/May/18 2:50 AM
Issue is reclassified as 'New Feature'"
https://quality.embarcadero.com/browse/RSP-20138