I wouldn't call it because of lock-in and more because we dropped the fiction that software is a thing that has a one-time cost and having people manage license

I wouldn't call it because of lock-in and more because we dropped the fiction that software is a thing that has a one-time cost and having people manage license keys is more expensive than its worth from support tickets alone. It's always been ARR it's just that the only software that was able to sell was huge amounts of units of $Software 2023/2024/2025 to smooth over the churn. People get mad at you, the software vendor, if you don't provide indefinite support to bits-in-a-box they paid $60 for 5 years ago (or 10 years ago if it's government) or make them buy a support contract but if you just charge it as in all-in-one subscription for the same price they're suddenly happy to pay it.