Well, on that they don't have much choice, and if it didn't had that we wouldn't be able to use a lot of bank and govenrment sites (in fact, in my company PC if I use a I.E. version that is too new it won't open a lot of sites)

Yep, they should put it in every screen loading and game start.

Sony had multiplats in the past (that if I'm not wrong even had PC versions, but wouldn't say Nintendo console version was better) and also the company that was recently spun off that done MMO was PC compatible and even then they didn't put advertise against the PC version inside the game.

Besides that, the one comparing other gaming companies was someone trying to defend MS not the opposite.

And again, the problem with the advertise isn't the advertise itself, it's that MS is using an unfair practice (like they done in the past against Netscape, by offering their free browser already pre-instaled on the windows itself), because they are leveraging their monopoly in OS to promote their products while also tarnishing their competitor and trying to move sales by that.

And google saying their site works better in their browser is a lot more like I.E. in the past asking to be default browser than this case in hand because it didn't said "Google Chrome is X% better than this browser you are using" and on the case of google you are willingly going to their page instead of the OS being installed in the machine you bought and also giving intrusive ads.

Google working better with Chrome is definitely different to "your PC battery will last 36% longer with this browser" though, one is a simple case of their site and search engine being utterly as compatible as possible with their code used in their own browser. The other relies on graphics drivers, PC cpus, screen size, battery capacity, even if on a single device it was true that you could get a 36% longer battery by running edge instead of Chrome chances are on 99.9999% of devices you would not see the same results because of all the factors which have to be taken into account, that said the advert/tip does say "up to" and if broadband speeds have thought users anything, the words "up to" should always mean "in our wildest hopes and dreams, once in a blue moon, if the wind is blowing in the right direction and no one else is doing anything in the world which uses electricity".

Still though I think there is a big difference between "our search engine works best with our browser" and "your PC/tablet battery will work for 36% longer with our browser" one is plausible the other is a Pokemon holding a leek!