Quick answer: Major feature launches surface specific bug classes. A targeted survey 1 week after launch captures the feature-specific frustrations beyond bug reports.
New features have their own bug classes. Surveys are how you find them.
1 week timing
Players have engaged with the feature; not yet abandoned.
Feature-specific questions
'Did you use feature X? How did it feel?' Targeted.
Open-ended fallback
'Anything else about X?' Catches surprises.
Track per-feature satisfaction
Per-launch survey scores; trends across features.
“Feature-launch surveys are post-mortem inputs. Capture; act.”
If your studio ships major features, the post-launch survey is part of the launch checklist. Plan it.