Workaround to perfectly use Chrome Evernote Webclipper Extension in Brave (probably works with other extensions too, have testet it e.g. with Mercury Extension):
Download Google Chrome (or Opera Browser with "Install Chrome Extensions" enabled)
Install Evernote Webclipper Extension from Chrome Webstore
Go to Chrome/Opera Extension folder on your PC
Go to folder "pioclpoplcdbaefihamjohnefbikjilc" (Evernote Webclipper Extension) and identify last version folder of EWE
In Brave preferences, enable an extension you do not plan to use otherwise (e.g. "Honey" or "Pocket"...)
On your PC, go to the Brave Extension folder
Identify the folder corresponding to "Honey" or "Pocket" (or some other extension you plan to substitute)
Find last version folder of extension (e.g. "10.7.2"), and rename it (e.g. "10.7.2_old")
Copy and paste the version folder from 4) into the extension folder from 7) and rename it exactly as the original extension folder (e.g. "10.7.2")
Exit and restart Brave > et Voilà!
Note1: It's possible you don't see any icon where it should be (right upper corner in Brave). Don't worry, it's there, but for some reason it's invisible
Note2: Every time the Brave extension you are "usurpating" gets an update, you need to redo all these steps. Enjoy!