In spite of swapping out evidence-of-work, the entire history of Ethereum given that genesis remained intact and unaltered via the changeover to evidence-of-stake. Any funds held in your wallet before The Merge are still available after The Merge. No action is required to improve on your portion. Further than https://financefeeds.com/howells-loses-battle-to-recover-770m-bitcoin-hard-drive-from-landfill/