For the file storage/sharing/collaboration part, yeah - there's plenty, and sharepoint arguably sucks even for that. What trapped a lot of orgs is making use o

For the file storage/sharing/collaboration part, yeah - there's plenty, and sharepoint arguably sucks even for that. What trapped a lot of orgs is making use of the whole PowerPlatform around sharepoint. There's a lot of crusty old LoB apps built with MS's no code tools (PowerAutomate, PowerApps) which run on SharePoint as the delivery platform. Some of these even hook into Excel files stored in the various document libraries, etc. There are entire, large business processes being handled by this platform, and so migrating will require actual dev time, which automatically makes it a non-starter for most, unfortunately. Doubly so when you consider that a lot of these "solutions" were built by non-devs, long since gone from the company and no one knows how deep the tentacles go.