​Thinking of Creating an All-in-One App for Businesses – Looking for Feedback

I’m considering building an all-in-one app for small and medium-sized business owners, with features like:

Bookkeeping Business OS Decision Matrix Expense Tracker Inventory Management Monthly Bill Tracker Savings Tracker Task Tracker Time Sheet Tracker Invoice Generator

What do you think the potential would be for such a web app among SMB owners?

I’m also debating the format and delivery:

Should it be a desktop app using Electron? Should it have both online and offline capabilities? Or, should I stick to a purely SaaS version?

Any thoughts or advice would be greatly appreciated!