There are many good options for text editing, some for presentations, but what about spreadsheets? Using Python/R/SQL everywhere ain't no panacea, spreadsheets are really useful in some cases and LO has the best implementation I've seen apart from Excel.

Gnumeric, since 2001

https://en.wikipedia.org/wiki/Gnumeric

plenty of ways with sqlite. someone just needs to come up with a good front-end without monetizing it.

there's sqlite db browser, but not much challenger in this space because it either gets turned to a saas (notion, airtable) or is a niche dev tool.