Honestly, even non-game apps. I was looking for a white noise generator to use with a Bluetooth speaker recently and was appalled at several of the top picks in that category having subscriptions— and not just any subscription, but like $5-10/mo. For some looping sound files.
I ended up going with Noisli; it may not have all the features, but it's at least simple and straightforward and had a modest one time fee to unlock all functionality.
It annoys me on the iOS App Store you can't search for 'paid' apps. The choices are either 'free' or 'any'. The paid apps generally involve much less bullshit than the free ones but they are always lost in the search. The only way to find paid apps is to look at the charts.
What really annoys me is freemium games for kids that insist you start a subscription (for no good reason) to get rid of the ads, instead of a one-off payment. They are literally banking on parents forgetting about subscriptions.