POV: Your phone isn't supported by custom ROMs

https://feddit.de/post/2603124

POV: Your phone isn't supported by custom ROMs - Feddit

Can someone explain what this means?
I have no idea … but to venture a guess, I think they meant if your phone is not supported by custom roms, try telegram (the first logo) for unofficial ones?? Or build your own from custom rom source???
It seems to be a screenshot of notification bar of OP’s Android phone (usually top of the phone next to time). Since this is Degoogle community, OP’s phone is probably not popular enough for a community to build custom ROM for it, therefore OP settled with using privacy oriented messaging apps like Telegram and Signal, whose notifications shown in the screenshot.
I still get notifications with Signal and Telegram FOSS though?
That works because GrapheneOS has its own push service. Since I’m forced to use a stock Android, push notifications are done through Google Play Services, which I’ve deactivated and FOSS apps can’t use anyway.
Appreciate the context. I almost deleted this as it felt pretty low value, or a meme. It wasn’t clear what the point of it was. In future, please provide a bit more context.
Yea Telegram FOSS always shows a notification pinged at the top, but Signal never has had to do something like that for me, I just let it run in the background and notifications work flawlessly
For me incoming messages only activated the screen’s backlight without making a sound until I pinned the highest priority notification to the top.
Maybe because I’m using the Signal Foss fork.
Third app that needs this is Threema.