I've been playing japanese games on my steam deck lately and have discovered a useful workflow for looking things up if you've got an Android device on hand.

Install Google Lens. Install Aedict and add JMDict in it (JMDict is what jisho.org uses, so it's pretty good). When in Google Lens, you can use "Text" mode to take a picture then select and copy text. When you copy text, Android will helpfully pop up a Share dialog. Click the share logo, find Aedict in the list and bookmark it so it's always at the top by holding down on it and click "pin".

Google lens will smartly let you select entire words with a single tap and has a dedicated copy text button, so this workflow is a surprisingly fast way to open your dictionary when trying to read text from other devices, from physical media, or out in the wild. It's even pretty good at reading handwriting.