SERVER-82034 added some checks to feature flags in jstests/libs/ftdc,js, which cause test failures on multiversion tests as seen in BF-32270. At the very least, featureFlagEmbeddedRouter definitely should use isPresentAndEnabled instead of isEnabled since it wasn't defined in 7.0 (I believe it had existed but under a different name). Additionally investigate featureFlagMultiserviceFTDCSchema as a candidate to use isPresentAndEnabled, whose check was also introduced in SERVER-82034.