No notifications even though Troubleshoot Notifications list no problems!

### Steps to reproduce

I hardly convinced my friends to use Element (Google Play Version)
When I'm sending them a text, picture, video etc... message they tell me they never get an Notification!
When I'm next to them I test it out and they are getting the message?! Maybe because we are connected to the same WiFi? Maybe because our phones are close? They also tell me that they get the messages very late like few days later or months later. I used the troubleshooter for notifications on their app and everywhere is a check mark, so no errors! I checked if they have the app and play services on the latest version, if notifications are enabled in the phone and app settings, checked if the push notifications are trough google play services and everything is fine! But they still have this issue and they tell me to use WhatsApp all the time and i don't want that. I'm the only one with the F-Droid Version and everything works out of the box! Please fix this issue!

### Outcome

#### What did you expect?
That my friends get notifications when I'm sending them a message
#### What happened instead?
They didn't get notifications and didn't read my messages

### Your phone model

_No response_

### Operating system version

_No response_

### Application version and app store

_No response_

### Homeserver

Matrix.org

### Will you send logs?

No

### Are you willing to provide a PR?

No