Verdict: Partly
Partly. QuickBooks Online runs in any modern browser and works normally on Linux. QuickBooks Desktop does not, and Intuit's own system requirements say plainly that Linux is not supported.
There are two different QuickBooks products and the answer depends entirely on which one you have. QuickBooks Online is a website. You sign in with Chrome, Firefox or Edge on Linux and everything behaves the way it did on Windows, because it was already running in a browser there too.
QuickBooks Desktop is a Windows program. Intuit's system requirements page lists Windows 11 and Windows Server editions, and states that QuickBooks requires you to use Windows natively, and that Linux, Windows 10 S Mode, emulators and virtual environments are not supported. That last part rules out the usual workarounds, and given this is your financial and tax data, it is not the place to experiment.
Your existing company file is the thing to plan around. A .qbw file is Intuit's own format and no Linux program opens it. If you are on Desktop and want to stay with Intuit, the move is to convert your company file to QuickBooks Online while you still have the Windows machine working. Intuit provides that migration, and once it is done the browser is all you need.
If you would rather leave Intuit entirely, export your accounts and transactions to CSV before you wipe Windows. GnuCash can import that and produce proper books. Keep the original file and access to a Windows computer until you are certain nothing was lost, because the conversion is one way.
Free double-entry accounting that covers invoices, payables and reports for a small business. Expect a weekend learning the accounting concepts.
Your files: Cannot open .qbw company files. Imports CSV, QIF and OFX exports from QuickBooks, with categories usually needing tidying by hand.
Browser-based business suite with a free single-app plan. Handles invoicing and accounting alongside sales and stock, so it suits a growing business more than a sole trader.
Your files: No .qbw support. Imports customers, products and transactions from CSV files you export first.
Invoicing and quotes only, with a free plan for up to five clients. Good if QuickBooks was mostly about sending invoices and chasing payment.
Your files: No .qbw support. Imports clients and invoices from CSV.
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