In the north-west Idleb governate and the city of Idleb saw new infighting between Ahrar al-Sham and al-Qaeda in Syria under its current moniker Hay'at Tahrir al-Sham (HTS). Ahrar, historically also an al-Qaeda offspring, was supported by Qatar and Turkey while al-Qaeda in Syria (aka Jabhat al Nusra aka HTS) was said to have support from Saudi Arabia and Kuwait. Rudiments of local CIA paid Free Syrian Army gangs are intermixed with these. Their primary task was to collect supplies from the CIA in Turkey and to distribute those to their friends in al-Qaeda and Ahrar al-Sham. Each of these groups received support in the range of at least $1 billion per year.
The spat between Qatar and Saudi Arabia mostly ended their interest in their proxies in Syria. The Trump administration decided to end the CIA support program for its FSA proxies in the north-west (but not for others elsewhere). This was a significant change of the situation for each group.