It is not easy for a smaller tech company (often happy with their relatively lean stack) to integrate into a big company and its stack if integration was ever a goal (not sure it was). The hassle factor in a big company is 2x to do something, and you often have 1/2 the drive / vision / motivation.

I do wonder though, do folks not have super clear plans for these acquisitions? They sometimes stagnate surprisingly. We used a smallish product (maybe 5K/year) they get acquired, they dropped a key feature and replaced it with a paid but not compatible / worse feature, then reached out with a sales person to talk about why we weren't using it and rolled our own replacement. I mean, huh? Of all the strategies this was going to be it?

Instagram a notable exception here.