I don't know much about this so please bare with me. If you think you can help in any way, feel free to ask any questions or anything since these forum sites are my only hope at this point.
I have a Macbook Air running MacOS Big Sur 11.4.
I use Google Chrome as my default browser and I noticed that it kept switching to Yahoo as I tried to search something. This has happened before and all I had to do was reset my Chrome settings, but this time it did not work. I have a Chrome extension called "Function Loginput" that I can't remove, and it prevents me from changing my search engine. There is a picture below that explains what Function Loginput is. I also will include pictures of the extension and what it says when I try to change the search engine.
I have been to numerous sites that seem to be helpful but every one of them has me downloading "Combo Cleaner" which is a mac cleaner application, although its features require payment to fully use.
I have ran the Combo Cleaner, and it does find threats, but to delete them you have to pay, and I can't.
If anyone knows anything about this I would greatly appreciate your help on how to get rid of all of this. Thank you.
Photos below include the description of "Function Loginput" and what it looks like for me when I go to my Chrome extensions, and to search engine settings.