I looked into syncthing and have set up a folder pair as well but does anyone run a separate additional server to do remote access of a specific file they might

I looked into syncthing and have set up a folder pair as well but does anyone run a separate additional server to do remote access of a specific file they might want to download? I am wondering if there's any clashes to let's say having something like nextcloud folders overlap with the folders used in syncthing? I am looking for an alternative that helps bridge the gap that is Google File Stream where even in windows it mounts as a drive but streams everything in the background as needed. Plex seems like a clunky way to go about it but I am open to any suggestions. The file stream feature was mainly used to stream videos in an uncompressed way. I mainly do local sync between android and windows and a rpi. I would love to have file streaming type support for the android and maybe an ios device. Android has a way to do file streaming built into some of the cloud manager apps but a diy solution might not have remote access. I am open to any suggestions, I understand that syncthing is about p2p syncing and the model is mainly for whole file copy.