As this comes up in google search I'll post here:

In order to share desktop Opera information, pages, bookmarks, data or notes, you need to have My Flow enabled.

Simply opera://settings/?search=flow and use the slider to enable this feature, a small triangular right pointed arrow will appear on your side bar, and be an option on your URL settings now.

Once enabled, you can either use the taskbar button to send messages, paste in URLs or drop files, or click the new button on the URL bar to directly send the current page to your phone.

To use this feature on your Opera phone, simply tap the Opera Icon in the bottom right and select My Flow .

@jaekobcaed https://help.opera.com/en/latest/search/
cough

Just follow the steps, and you can customise however you wish. Its pretty straightforward

Considering the amount of files in the installation directory, one could extrapolate the 3rd Party Extensions having their own physical file, that the internal extensions would as well.

So I'd also presume, simply deleting the damn things, if you knew what they were, and then using the debug flag to suppress any probable and inevitable bleating....

It's just very irritating to have a browser that purports to have good customisation and with better resource management, and then stare at a bleeding Tablet function merrily munching memory....it is one of the first Windows services I disable completely still on installs

...and yes yes we have more than enough memory and power these days to not really need to stress aobut 100mb....but...ya.

I've trawled all over, with various solutions offered but to no avail including opera://flags/ settings etc.. including long winded debugging options from the Chromium forums and devblogs in an attempt to Not load these system embedded extensions on startup.

Specifically, I want to disable the :
Extension : Rich Hint Agent
Extension : Opera Touch Backround

....which clearly are not things I need active, and furthermore, if manually terminated they stay terminated throughout my session to no detriment.

I've included a screenshot of my Opera GX Task Manager.

So surely if it is possible to manually disable them, one can set them not to load at all?