Exactly! Sadly like Matrix said, most of the models with these new AUO 24,5 panels have this problem. It is more obvious on the 60hz/75hz models (like the Asus VG255H or AOC G2590) and 144hz models (like the AOC G2590PX or Asus VG258Q/R).
Not as noticeable, but you can find it, on the 24,5 240hz models.
These new AUO 24,5 panels wich I suspect are the same for every refresh (60hz/144hz panels might be bad bins from the 240hz ones) top out what TN technology can do tho. They have the best contrast you will ever see on TN panels, they suffer from minimal to non existant backlight bleed and the viewing angles are very good for TN. So is the coating and the colours overall. It has drawbacks tho, being the interlace patterns and the overdrive, wich is hard to control without overshoot. Most 24,5 models suffer from more overshoot problems than the old panels.
With that being said, you might not notice this. Also be aware 24,5 starts to be too big for 1080p imo. Maybe you only notice that side by side with a monitor with more PPI.
There are new high refresh panels coming soon, and smaller. Specifically the
LG 24GL600F wich will use a 144hz TN 23,6 inches panel (perfect for 1080p and competitive gaming imo):
There´s also a new Asus model coming up, but no one can confirm yet its panel, but it is 24 inches max:
ASUS VG248QG 165hz with 0,5ms response time -
https://www.asus.com/Monitors/VG248QG/
For old alternatives with an outdated (but refined) panels, you have ViewSonic XG2402 or XG240R (masterpieces).