Image appears differently in different browsers

1

Hi,
The featured image appears differently in different browsers:

Chrome:

Bildschirmfoto 2023-11-09 um 19.46.49
Bildschirmfoto 2023-11-09 um 19.46.491356×540 256 KB

Firefox:

Bildschirmfoto 2023-11-09 um 19.47.02
Bildschirmfoto 2023-11-09 um 19.47.021213×525 290 KB

Settings are the same:

Bildschirmfoto 2023-11-09 um 19.51.17
Bildschirmfoto 2023-11-09 um 19.51.17556×1554 110 KB

Why is that?