I saw this video today, it seems like he is installing CFLs in MV fixtures without ballast bypass, I assumed that there would be some type of fire or tripped breaker at least but I guess not. https://youtu.be/i0CSLPIzMYM?si=yYceMFpVP3YgFlbP

Dunno where it is from, but with a series choke ballast and no ignitor (so typical MV arrangement in 230V areas), you can directly connect most 230V electronic loads, of less than about 1/3 of rated power compsre to the MV, after the ballast without any issue.
In 120V area with an autotransformer or CWA you may do the same, just the voltage rating should include the OCV of the ballast used there. With typical MV-only ballasts (so not supporting MH bulbs) the OCV uses to be around 220..240V, so European 230V CFLs will work well...