I'm interested to know this as well and what the road-map is for ANT+ in the nRFConnect SDK. Previously ANT+ has only been supported in the nRF5 SDK, however newer SoC's aren't supporting this SDK.
Other interesting features like the Apple Find My support is also only available in the nRFConnect SDK so there is no clean path for a product to support both ANT+ and Apple Find My.
Support is coming for the nRF53 series, which the team expects will be available for beta by around Q3 of this year. There are also plans to support the NCS by roughly this time as well.