In the screenshot taken from Opera's help database, it mentions uninstalling Opera but it never describes exactly how to go about that on macOS.
On Windows, the process is putting this in Command Line:

"%LOCALAPPDATA%\Programs\Opera Crypto Developer\launcher.exe" -uninstall

However, there is no such backdoor method for uninstalling on macOS. The software came with an installer, but no uninstaller.
Personally, I like Opera and Opera GX. When I found that Opera Crypto Developer was essentially Opera GX but with fewer features and nothing unique aside from Crypto Corner, I decided to uninstall it because I'm low on device storage.
However, there is no clear way of doing this.
Several third-party sources recommend installing an all-purpose uninstaller (all of which are trial softwares that lack the capacity to self-uninstall) or merely dragging the application to the trash bin and immediately deleting, but that's only skin-deep.

How do I perform a proper uninstallation for Opera browsers?
If there's not a way, one ought to be made.

It's two things I like, at the same time! This will be my background until there's another one.
So glad GX and LGIO are linked this way!

@leocg It's not similar whatsoever.
If it was that similar, there wouldn't be a large number third-party uninstallers.

Don't guess at stuff you have no experience with and write it off as advice. I wouldn't be mentioning a backdoor option if there was a front door.

@blindfoldedleo Your argument is invalid

@roclay You need the GX Mod to make that happen

@kingswiney The benefit of his links is that a section for his channel gets added to GX Corner.

@boosywise I've been looking for a genuine 'big fan' of hers in hopes of asking a few questions about what makes her streams worth watching. Any chance you're in the Opera GX or GX.games Discord server(s)? (I'm not welcome in the GX Aura server because I didn't fit the vibe.)

@opstellar: it got 4th place, you dum-dum

I thought there was an animated version of this

Wait... this wasn't one of the winners. Why didn't you post the winners?

@totherkoala: it was revealed in Christmas actually. You'd know if you followed the Twitter or the Discord.

morchel03 from behind the Opera GX Twitter account. Because memes.

@replexhd: they didn't say temporary