Difference is that KF-21 program doesn't include a weapons bay or conformal sensors up until Block-3 and Block-3 is not funded as of now iirc. It is the same thought experiment as Kaan is 6th gen
"• Bayraktar KIZILELMA’nın uçuş ve manevra testleri tamamlandı. Seri üretim aşaması için çalışmalara başlandı."
KE's flight and maneuver tests were completed in 2023
https://www.ssb.gov.tr/Images/Uploads/files/2023%20Yılı%20Faaliyet%20Raporu(1).pdf
Electric is generated by the generator, not engine, you can swap generators. Hürjet has Honeywell produced generator and alternators while Kaan has 2x120kVA generators produced by Volt Teknoloji