The support assist function should by default find and install all recommended updates automatically from Dell (without any action on your part).  Unless you opt out of it or removed it from your system, that is.  It isn't necessary to manually search or go to dell.com to update the drivers. 
I have three month old R10. When I check  online at Dell.com support, and choose "let Dell automatically find Driver updates for you", it says that I am up to date and no driver updates are available. If I go check driver updates and downloads manually I see a driver update flagged with  "this PC" urgent status, relating to a 3090 video card driver update released end of July addressing an NVIDIA security bulletin. The driver identification  appears specific to Dell, ie does not seem to correspond to an NVIDIA driver number that I would find on the  the NVIDIA website, so I cannot tell if it corresponds to a recent NVIDIA driver update released by NVIDIA. So I am not sure if I need to download and install this driver. If I need it and it is urgent why does it not show up when I choose to have Dell automatically check for me? I am using the video card driver that came with the PC when it was delivered back in May 2021. Greg
Does Support Assist reliably see all driver updates?