KDE Plasma : app.notification-activate button sometimes appear in Telegram notification

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Hi anyone. I want to discuss notification bug on KDE Plasma 6.3.4 on Fedora 41, but it still persistent on Fedora 42. Thats bug is sometimes I get extra button from Telegram look like “app.notification-activate”. I install Telegram using Flatpak from Flathub registry. You can see in my pict.

Are you all find same bug as me? If yes, I’ll report it to BugZilla soon as possible. Please share in here if y’all get some workaround to fix it. Thanks for your response, and sorry my English.

System info (copied from Info Centre):

Operating System: Fedora Linux 42
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
Kernel Version: 6.14.2-cachyos1.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i5-8350U CPU @ 1.70GHz
Memory: 7.5 GB of RAM
Graphics Processor: Intel® UHD Graphics 620
Manufacturer: LENOVO
Product Name: 20KEA062UK
System Version: ThinkPad X280