The Syria part was quietly executed under Biden, whose administration deserves full credit. "Destabilizing" means fragmenting, I'm not saying that Assad was any good of course.

Syria was in a civil war since 2015. The US (and Israel and Russia) failed to control their intelligence assets on the ground. Sadly we don't have Hillary's emails like for Lybia, so I can't mock France DGSE for loosing their asset, and control over the rebels, within two weeks.

In Syria it might have taken years, but considering the reaction of the US, Israel and Russia to the sudden Syria push, I guarantee the admin in power wasn't informed. What is more likely is that they lost actionable assets during COVID. At best the CIA was aware but didn't inform Mossad not the US, but that would be giving them a lot of credit.