Hi. Since FW 5.50 my 530 is no longer showing notifications whilst riding outside. I have all options set and they were all working fine on the previous 5.48 beta . Tried re setting and re-syncing my iPhone 11 but that hasn't helped.
Interesting problem. I just did a 100+ mile road ride and all route notifications came through fine and I'm on 5.50.
One thing I would suggest is to go through and turn off all the notification settings, power cycle the unit, then turn them all back on. I've seen in the past that Garmin units may show one thing in a config yet have something else stored. Changing the setting and saving, power cycle, then change it back was effective in fixing it's brain. Give it a try and let us know if that helps.