After https://github.com/neovim/neovim/commit/6913c5e1d975a11262d08b3339d50b579e6b6bb8 in Neovim nightly, neotest returns No tests found (tested with neotest-python). Since it's mentioned in the PR that the option all = false will be removed in the future, maybe a more robust approach would be preferable, but I don't have the knowledge to implement it. This is just a hotfix until someone else comes with something better.
After https://github.com/neovim/neovim/commit/6913c5e1d975a11262d08b3339d50b579e6b6bb8 in Neovim nightly, neotest returns No tests found (tested with neotest-python). Since it's mentioned in the PR that the option all = false will be removed in the future, maybe a more robust approach would be preferable, but I don't have the knowledge to implement it. This is just a hotfix until someone else comes with something better.