This looks weird and users generally don't like UI elements dynamically moving and resizing themselves.
A possibly relevant merge request was started @ https://invent.kde.org/multimedia/dragon/-/merge_requests/10
Git commit e80da11c61e2863b89c0d33031752e09c4608850 by Harald Sitter.
Committed on 19/11/2022 at 11:12.
Pushed by sitter into branch 'master'.
use icon only toolbar
the iconography should be clear enough anyway. this not only stops the
position slider jumping around on pause/unpause but also gives a neater
look by default
M +2 -2 misc/dragonplayerrc