So if I remember correctly when Phone Link disabled the lock screen visibility and remote Bluetooth activation of your Samsung device you could still glitch yourself to view your lock screen.
If you had Samsung Flow also connected on both your Windows device and Samsung Phone then you could ask for a connection request over Samsung Flow.
This would then send a notification asking you to accept the connection which you were meant to accept manually. But this notification was visible in your Phone Link App which if accepted remotely you could then view the lock screen in Samsung Flow.
This workaround got gutted when the type of notifications Phone Link could display were butchered.
My advice if you want remote access to your phone for calling and access purposes is get a Samsung Tablet to pair with your Samsung Phone. They have consistently added more functionality and ease of access for devices in their ecosystem.