I'd log into your online XMSirius account and verify they really did unsubscribe your Travel Link subscription (people do make mistakes).
Next, verify the SXM Travel Link subscription (Weather, Stocks, Sports, Fuel prices and Movie) is shown as unsubscribed in the vehicle. I don't know what SXM AGW is.
On a 2018 G80 with 9.2" touch screen the steps are
Change media to SiriusXM
On touch screen choose \Menu\More Features\Subscription Status\
View attachment 35223
XMSirius queues up subscription changes and it does not happen instantly. It can take 5 minutes to 1 day sometimes. If you are in the car when the subscription update occurs you will typically see a notification on the screen.
If online it shows Travel link unsubscribed but subscribed in the car do a
XMSirius signal refresh to re-push the subscription update to your vehicle.
Also,
I speculate Home Screen freeze is a separate/additional issue (most likely a head unit hardware problem). I had the issue not being able to change channels within XMSirius but never had any issue with my Home Screen freezing. Removal of the XMSirius travel link subscription resolved my issue.