I added my own preferred search engine under "Other search engines" however the browser doesn't allow me to set it as the default search engine. The option to click to select the search engine as default is greyed out. I have posted three screenshots below of the browser search engine issue and a third with system information and browser information at the end of the post.
Steps to reproduce:
1.) Add a search engine that isn't included in Opera Browser by default.
2.) Attempt to set as default. (Not possible.)
1.) I should be able to set any search engine I add as the default search engine so that when I type into the search box at the top-right of the browser or in the address bar box it will use the search engine I added and specified.
Opera version: 85.0.4341.60
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36 OPR/85.0.4341.60
Install: C:\Program Files\Opera
Profile: C:\Users\username\AppData\Roaming\Opera Software\Opera Stable
Cache: C:\Users\username\AppData\Local\Opera Software\Opera Stable
For all users on this computer