After a long time tried another wide field of the Milky Way from my home location.

Winterthur on the right side brightens the sky substantially and made background extraction extremely difficult.

Sigma 24/f1.4 DG HSM Art
Canon EOS Ra
iOptron CEM26
UV/IR Cut filter
Bortle 4-5
No moon
Sky 54x60sec
Foreground 5x30sec

PixInsight
Photoshop