The first time I expirienced Scrum rituals I thought I'm inside the Idiocracy movie, or playing some tech-themed LARP game.

In my anecdotal expirience the same org moved from mini-waterfall to Scrum now required order of magnitude more people to work on a project with a fraction of complexity (e.g. equivalent to a single component/service under mini-waterfall).

Not everybody knows that, but Scrum was invented to manage a team of dysfunctional COBOL programmers at a bank, not for product-led tech companies, and certainly not for startups.

If you're mostly hiring juniors, low-skilled, unpassionate, unable to work autonomously without constant handlholding, reactive instead of proactive people, then you'll certainly need some micromanaging SDLC like Scrum.