Is Wotvffbe F2P friendly?

Yeah. You just have to save and spend wisely. I am F2P and have Frederika, Lu’Cia, and Warrior of Light at MLB.

You can play it as F2P but you will eat your heart out in the process.XD You will do grinding till you burn out and want to quit.
Being a paid customer isn't guarantee the success of your featured unit summon but you can buy more unit shards in the shop and max your unit faster.

No and the guy with lvl99 Gilgamesh is definitely not f2p

It is f2p friendly, however it takes time to make your unit equal to p2p players.

The gap between old unit and new unit arent that large. In fact, some old unit ( even the one that released during the game release date ) stilll dominate meta even today in JP server.

Yes f2p friendly but the grind is pretty horrible

Yes, just make sure to Max out all LB of limited offered characters :)

Yeaaa- quite F2P friendly. Just aim for couple free unit like yshtola, etre, gafgarion(later event), etc. Max out Mont is a must, Tachred is quite good as long you got him limit break 3 times. Anyway, any UR/MR unit is good as long you can get them max awaken and limit break at least 3 times (you get lv 79 chararacter this way)

dunno looks like if you pay theres a high chancce you get 5-7 UR but if you're a free player 4 UR is your limit

Yes it is F2P friendly, because the arena battle is according to each players power. So you wont meet much more stronger than you, it is balanced

I honestly dont see it being bad as f2p you do get plenty of currency to do stuff. They do have paid currency which only the paid can get though.