Is there a good reason not to use GA for client side analytics? Is the juice worth the squeeze for a self-hosted/ FOSS solution?

Obvy client side isn't as 100% as looking at the logs, but I've worked with Adobe Analytics and GA (on the free plan) for a few years. UI in GA is much more intuitive to me than Adobe, and I use the tight integration with Google Datastudio pretty often to make reports or slide decks.

Personally I like the well documented GA API to run reports against + python and R API wrappers. For me the only downside is the level of sampling they use. With Adobe Analytics, the API is not as well documented, but they don't sample like GA, but also I wouldn't want to front the Adobe Analytics bill every month for my side projects.