No.
The CRA says that accepting donations without the intention of making a profit should not be considered a commercial activity. The March 2026 draft guidance adds that a FOSS project funded only through voluntary donations is unlikely to be treated as placed on the market where access to the software, source code, and updates is not conditioned on donating.
But donations can still amount to commercial activity where, in practice, they function like the price of access, for example if releases, binaries, updates, or other essential benefits are available only to donors, or if the donation model is organised to generate systematic profit rather than sustain the project.