Since when did Firefox make it so difficult to set custom search engine?

So been moving around a lot with browsers, waterfox, librewolf and very recently degoogle chromium, figured id look at Firefox and holy theres less than half the option in setting then there were afew years back but I gotta say the biggest sin is that adding custom search engine is obfuscated, and the chooses of engines are google, bing, duckduckgo and fucking Amazon! Wtf is that about? But anyway all these search engines are pretty awful including duckduckgo but beyond that the browser scene is a joke, mullvad are about the only company I feel compatible with using now

Edit: instead of saying how easy it is to add custom search engines, I'd like to know why the "add search engine" feature in settings is gone?