In my opinion: EPFC is easier then EP
For some reason the missions are easier and there's more ways to victory.
Take: The deposit, in the Entry point there was only 1 way to beat it on quiet and 2 on loud, but now there are multiple progression methods, like using the fire escape. Also you don't need to find Deposit box nor need a keycard at Recruit. Or Lake house, which hilariously easy compared to Entry point 2017 where you only have to grab 2 servers instead of 6 on loud or Withdraw where you only have to grab 2 money bags compared to 6. Hell even Scientist is easier as not everyone can detect you plus the map is more open.
Plus detection system feels easier on recruit on Freelancers cut compared to Entry point 2017. You actually have time to react after they sound the alarm, instead just getting shot at or them running away and not everyone detects you.
Also you can disable Radios and with at least 1 level of social engineering an extra one and 2, I believe up to 5.
Also the skills system is been overhauled with the ability to now remove them at will without needing to respec and being able to change your core skill. Plus there's now combat training and getting equipment is easier
Speaking of that; you don't need to waste as many precious skill points to unlock certain items/the ability to use them. Also the items in the game are really good compared to Entry point. Plus most EP items are available in FC. Except Blowtorch, which kinda got replaced by Saw and Screwdriver. Also there's a Brick in Freelancers cut so yea.
But: I do think there are a few aspects that make it harder: Trespassing detection, instead of just stopping at 1.75 bars? It goes all the way until full and ripping doors down in harder as you can't pick or drill on the ground, plus armor is worse in FC as there isn't any Aegis.