I think it should be Ctrl-C, then Ctrl-F, then Ctrl-V.
Nothing wrong with that tutorial, Why CTRL+V, then CTRL+F, then CTRL-V, After you have copied wallet address, you need to paste clipboard. It means we need the first CTRL+V, After we are pasted wallet address, we need to check wallet address from clipboard results, then we need CTRL+F. The last CTRL+V is for a paste wallet address on the search form.
So, for complete process is CTRL+C > CTRL+V > CTRL+F > CTRL+V, like LoyceV says.
the pasted address, I assume to avoid triggering the clipboard malware. It wouldn't make sense to do Ctrl-V immediately after selecting a piece of text. Anyway, it's been fixed so not an issue anymore.
Your method works too but only if malware doesn't do reverse substitution.