No help for Calc: Data > Data Provider available. https://help.libreoffice.org/6.2/en-US/text/scalc/01/data_provider.html
The dialog does not even have a help button or any other way to command the resource. Versão: 6.2.2.2 ID de compilação: 2b840030fec2aae0fd2658d8d4f9548af4e3518d Threads da CPU:8; SO:Linux 4.18; Realizador da interface: padrão; VCL: kde5; Local: pt-BR (pt_BR.UTF-8); Idioma de IU: pt-BR Calc: threaded
Looking at Calc 7 on windows (see details below), the Data > Data Provider and Data > Refresh Data Provider menu options appear to have been removed. If this functionality has been intentionally deleted from the software, then the relevant LO 7 Help page should be deleted rather than expanded. Version: 7.0.0.0.beta1 (x64) Build ID: 94f789cbb33335b4a511c319542c7bdc31ff3b3c CPU threads: 6; OS: Windows 10.0 Build 18363; UI render: Skia/Vulkan; VCL: win Locale: en-GB (en_GB); UI: en-US Calc: threaded
It was removed in a Dec 2019 patch (https://gerrit.libreoffice.org/c/core/+/85541) because "the data provider feature is not ready for production". Based on the Jenkins output, it looks like it caused the Windows build to fail. Since then there have been a number of updates to the Data Provider feature, but I have no idea if they resolved the issues.
*** Bug 137419 has been marked as a duplicate of this bug. ***