You might have seen a quest, where if you stream a specific game to your friends you get a free in-game item, but these are not advertisements.
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Advertising is the practice and techniques employed to bring attention to a product or service. Advertising aims to put a product or service in the spotlight in hopes of drawing it attention from consumers
I have no interest in streaming "quested" games, and whatever deal Discord has done with the developer to encourage users to engage with such games (and by extension the game's microtransaction economy), and regardless of what they call it, is by definition an advertisement. If you can't see that, then you are an ad campaign exec's wet dream. Either that, or a troll.
Regarding battery degradation - I've owned my EV for 4.5 years now, and its battery is still at 93% of its original capacity. That equates to maybe 10 miles of range lost, from an original range of around 230 miles. At that rate, it'll still be giving usable range in 10, 15 years from now. It's even warrantied to keep over 75% of its original capacity for 8 years / 100,000 miles - if it fails to achieve this (likely due to some defect), it's replaced for free.
And when it does eventually need replacing, it can be recycled into something like a home storage battery - where the power demand is not as high, but still more than enough to power everything in your home for days. Meanwhile, the car can be upgraded to a brand new battery, which will likely last even longer.
Edit: In fact, I tell a lie - I did have to replace a battery on my EV recently. The 12v lead-acid battery, that ICE cars also rely on.