Yes, they have (Safari being the most notorious) but... it doesn't make it right

Neither does competition doing the same stuff. MS started bundling the IE just to get rid of competition (same with other apps, like Skype/Teams…).
I get that they may want to offer "complete environment" that's well integrated and consistent but they don't have to sync all the releases (and neither bundle all the stuff)
I can understand why they update safari, the same reason why MS updated Internet Explorer and Edge when they changed to that. Security., Sure they do add stuff onto it that I don't want, but at least you have a choice of different browsers. Saying that, a lot of them have stuff I don't use. I am using Brave at the moment, and it has stuff I don't use, but at least I can ignore the bits I don't use.
You are correct about MS and IE, I remember Windows 95 coming out with the now with Internet Explorer on the front.
I read a few years somewhere that MS did not call Windows an operating system any more, it was something like a computer environment or something like that and not an operating system
I don't disagree with you, since Windows 7/8 I started to get fed up with the extras that were bolted on and MS started to make it more difficult to get rid of stuff I did not need. My view was if I wanted the stuff I can install it after, I feel the same way with browsers, more and more is bolted onto browsers, my view if I wanted the extras, then I would install them as extensions.
As I said above, I am using Brave, it has AI, an advert blocker, add password management, I hate using them built into browsers. A reward thing and a wallet for crypto.
I prefer to be able to add them in if i want to. I suppose they take less resources built in than as extensions.
But I don't use any of them.
I used to use a Chromium based browser a few years ago I can't remember the name now, it was great, very little added to it, sadly it was not updated security wise for a while, so I had to drop it .
Before I changed to a Mac, i did think about Linux and I do have it on my PC, on another drive, I have MX linux, but it just don't have the software I need, or the software is not there in quality.
Now, I have a Circut cutting machine, no software on Linux for it, which is a shame. They used to have their software online, so it could work with any platform, but they don't now.
We just have to cope