On One UI4.0, if I go to the Files app, select Network Storage and add a SMB Storage, it works. But as soon as I exit the app, and go back, the Network Storage is not there anymore, and has to be re-added. It is not saving, i have to re-add it to MyF...
Better to download Good Lock from samsung app store. Irshad is specifically designed for galaxy phones.. its free and gives tonnes of customization options