OG Streams on Facebook is a joke of a IPTV provider. Only can use their "branded apps" and no m3u. The channels load slow and buffering is a major problem. But what else could you expect for something they are always advertising as $40 a year. Never buy a year service as this provider will likely not be around much longer. OG streams vs free Iptv provider and the free Iptv will win in quality and price all day long. Providers that don't provide a m3u are always a big red flag to me personally. If you ask why there service is slow or buffering they will boot you and block you as they know they are selling a junk service.
A years IPTV for $40 is the big red flag not having an m3u is normally for security reasons again never buy a years sub with anyone no matter how cheap they are.