Welcome. Sure, Linux Mint’s WebApp Manager or Peppermint OS’s Ice are here for you. But jokes aside, sadly, no. Lemmy does not have a native Linux application as of now. But you can make use of the fact that the browser UI is a PWA which can be installed like a regular app as well.
Exactly the same happened to me. It just feels so natural. I run basically every single command with the Atuin up key. It is faster then typing it all again and again. Atuin is what the history search in terminal should have always been.