You can make ChatGPT as default search engine in Chrome and Edge either by installing the extension or by adding the address ...

Click “Search engine” on the left side of the screen. Select “Manage search engines and site search” under Google to edit your default search engines. Scroll to the “Search engines ...

From this same area, you can edit the search engines by clicking "Manage Search Engines and Site Search." Here, you can edit and remove the provided search engines and create your own custom site ...