Browsers are very complex and fast moving tech. This means expensive. This implies professional paid staff. Then comes how to raise money. The big companies have revenue streams. Smaller groups have to do it any way they can which is always compromising something.

Mozilla too makes compromises... setting default search to places I would not use. Trying to offer a subscription set of services which is actually not a bad plan but is not exactly to the point. So I trust them more and want to see them succeed but they have challenges too.

Some ways huge parts of tech relies on questionable income streams including the tracking, ad, and personal information broker business. Google of course but Mozilla is funded largely by Google as far as I know. Apple may get similar funding but larger. Microsoft even in Windows installs crapware from partners. So it is everywhere. HP laptops typically do too.