Overlay: additional feature flags #4039

Job	Run time
Resolve environment (macos-latest, linked)	3m 10s
Resolve environment (ubuntu-latest, default)	35s
Resolve environment (macos-latest, nightly-latest)	2m 22s
Resolve environment (ubuntu-latest, nightly-latest)	47s
Resolve environment (windows-latest, linked)	2m 1s
Resolve environment (macos-latest, default)	2m 55s
Resolve environment (windows-latest, default)	1m 8s
Resolve environment (windows-latest, nightly-latest)	3m 16s
Resolve environment (ubuntu-latest, linked)	31s
	16m 45s

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