I want to move to an external SSD

I have a late-2013 27” iMac that is successfully running OCLP and Ventura. I simply want to move off my old Fusion Drive set up and go to an external SSD for everything. I have a full Time Machine backup. Could somebody kindly explain the steps? Ideally I’d like the end result to be the Mac booting into Ventura from the SSD and the old fusion SSD/HDD being ignored completely. Is this even possible? Thank you!

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submitted by /u/UnderstandingALot
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