HO from 5G to 4G

During EPS fallback, gNB finally sends a HO command to UE or RRC release with redirection message to UE
Please clarify

it is upto NW to decide whether want to use RRC_IDLE or RRC_CONNECTED during EPS Fallback.
RRC_IDLE use by 5G RAN : RRCRelease with EUTRAN Freq
RRC_CONNECTED : Handovercommand wirth Target cell as EUTRA

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If 5G UE in Active session then it will use HO Command
If not …assume in Idle then RRC Release with Redirect.

Even in CONNECTED , NW can send RRCRelease woth redirection info.
it is upto the NW to decide

Usually this kind of transition is done by Redirection in order to save time and resources.