Logic is the answer, ie.
We have Yak-1 s69 with PF engine. We can use the plan on early maps to keep balance, but we need to decrease the speed for 1941 maps
We have 109 F-4 1.42 ata which was available after producent publication in November-December 1941. We need to decrease the speed for 1941 maps
We have 1 version for Ju87. We can limit the loadout to keep historical accuracy and use this plane for early 1941 maps.
We have La-5. Cool, lets use it in late 1942 maps. But we need to keep that plane in service and later use M-82F engine as a La-5 F only after April-May 1943.
No. First squadrons were equiped at autumn 1941 in 109 F-4.
763 F-4s were produced from May till Dec 1941. Split it for western & eastern front ( another 576 F-4 trop, 544 F-4Z and 240 F-4 R/1 were produced in 1942 ).
Count that 2 factories were producing those planes. Lets say 50/50. It means 380 planes for 8 months. Count some delay between production and operational use.
So. Yes. F-4s were in autumn 1941 at front line but not in big numbers.
About F version.
For 22 LW gruppen 14 had Friedriech ( mostly F-2 with 15mm ) 7 had Emils, in use ( mixed E + F) in June 1941.
109 F-4 1.32 ata started operational service since autumn 1941. ( historical fact about F-4, only 4-5 planes were equiped in gunpods 20mm in 1942, tested in Rechlin May 1942 and then were sent for combat tests in JG52 since June 1942)
Of course similar story with 23 mm cannon for LaGG-3. No it was not common. Around 10-15% of planes were equiped with this cannon.
And I have plenty more interesting facts
Also some interesting planeset logic change is in plans, stay tuned!