Issues updating my Samsung S7 hérolte

Probably not … I recollect that during the “First Start Wizard” there is a screen where “Update recovery” is mentioned … validate / cancel are available.

I don’t think I can explain why the Android recovery backup was retained and deployed in your case; as far as I understand it is overwritten by a standard custom ROM installation procedure.

I think the best you can do now is re flash e-recovery 1.16 with Odin. You will be familiar with need for careful reboot Your first boot into TWRP or it might be overwritten again !