Now that you mentioned this, I do recall in the early days of mobile games, back when the App Shops were first introduced, there were games that you would pay somewhere between $1 and $5, and you get the whole thing. No in-app purchases, no ads, and no lotteries for special characters or gear. I remember Square Enix had some really good JRPG games that were made specifically for the iPhone and iPad. Chaos Rings and DrakeRider were two games I recall playing, but they were much more expensive compared to the usual games I found. But, when you paid for it, you got the whole game and all.
I think mobile app developers have realized that they could get more engagement and cash from their users if they made games that had a gambling aspect to it. Kinda like the casinos in Vegas, the house always wins, but you keep putting in money on the hopes you get a jackpot.
That being said, there is one freemium game that I do find quite fun, and that is Romancing SaGa Re;univerSe. The thing that makes this freemium game a bit different is that Square Enix is quite generous in their in-game currency. You can actually do quite well without making any in-app purchases.
I'm in the game industry. This is entirely person observation I have not studied this topic so can't source anything
The people I saw going to early mobile market were a lot of handheld console and flash game devs and companies. They were adapting the closest existing game designs and brought with them a "small game small cost" philosophy. It also wasn't really known yet how impulsive people are on phones. So it was an unproven market with smaller teams and people making yester era design choices. There also used to be a few bigger games with bigger price tags but people didn't buy into those because anyone willing to spend that on a game at the time would have had a console or PC and could buy a better experience there for the same price.
The only mobile game experience I have was back in like 2012, smart phones were really taking off, and the market for mobile games was proven. The company I worked for we built a release ready game but it never got released. We couldn't sell it to investors because the monetization was never aggressive enough for them (the investor money at that point was less about making the game and more to fund marketing and stabilizing the studio as a long term business). I quit when my job stopped being dev work and started being round tables about how to psychologically trick players into paying more. Anyway with so much focus on heavy monetization it stopped being economically worth it for a lot of startups to actually make good games when thinly veiled skinner boxes pleased the investors all the same
I'm feeling the same way about Minion Masters. I just play it on my Steam Deck, but it got an Android release recently. They gave away a few of their "DLC" packs (which is how I found it about it), so maybe my experience is a bit atypical, but I've just been playing for a week or so and I already have more than half the available cards and enough currency that I can craft any cards I really want to finish a deck.
I haven't paid a cent. It's so generous with its freemium model that I'm probably going to buy an in-game currency pack if I'm still playing once my Google Rewards wallet ticks high enough to buy one.