Hey, thanks for the detailed report and for collecting all the related threads. That really helps.
This is a known issue. The feature is indeed broken. The cursor.composer.usageSummaryDisplay setting is still in the config, but the UI control and the functionality are gone.
The team is aware and the bug is logged. I can’t share a timeline for a fix, but given the number of reports, it’s definitely on the radar.
Let me know if anything changes on your side after the next updates.