I tried every way to get rid of the .html url in .htaccess and it just will not work

I've tried to use multiple variations of code found on stackoverflow to try to get rid of the .html thing from urls. And yes, I did change all of the hrefs to without the .html extension and I get a 404 error every time. I am using vscode live server, but I have also tried transferring the code over to my host and it wouldn't work either. Typing the page name with the .html works, but removing it doesn't. I've tried every copy and paste code I could find from stackoverflow and it just would not work.