Hi @AnnaPapiernik, thank you for the additional context! I checked in with our PMs, and they confirmed that the “Time entries as CSV” feature was temporarily rolled back after some bugs were detected. That’s why you’re not seeing it at the moment. 
I’m keeping an eye on their progress, and I’ll be sure to share an update here in the Forum as soon as there’s a new ETA for full release. Apologies for the inconvenience in the meantime!