I feel like the game devs got more and more interested in earning money for as little effort as possible over time.
What do the developers want? Money from the consumers, obviously. That's the point of most if not all game companies.
I feel like DLC is a good example. As Blackquill mentioned, these "expansion packs" weren't needed. You could still enjoy the game without them. Now a lot of DLC is almost restricting the main game in my opinion.
Imagine a game you bought because you wanted a super cool experience.
Now imagine your disappointment as you realize that, despite being sold as a full game (also a lot modern games are mostly overpriced imo), you're restricted to maybe a few items and areas or whatever unless you purchase the DLC, which the developer encourages you to do for extra money.
And don't get me started on microtransactions. They've been there for a while, yes, but they've spread and are in a lot of famous triple A games now. Like Blackquill once again said, most microtransactions were just cosmetics and optional, but it slowly went over to what is what some would consider gambling with the lootbox system; you can spend maybe 2-3 euros on a key to open a box where you might get an extremely valuable item, but covered behind a bigger risk of getting a 0.03 euro skin, and a lot of games make it so you cannot buy the thing you want directly, or in Overwatch's case, you have to open enough lootboxes to either get the hard-to-get skin you want, or enough duplicates to get the money for the skin you want. If someone fucks up and doesn't get the item they want from one crate, they may purchase and try another one instead of spending more time ranking up for a new one. Companies implement it because they know it will earn them more money than letting the player buy the skin directly, despite the fact it's a mostly anti-consumer strategy and a shit move.
Maybe I'm wrong, but that's how I feel about the modern video game industry.
EDIT: also not ALL modern DLC is bad. Blood and Wine or Hearts of Stone from Witcher 3 is a good example.