Beatable for 2/5 when the lineup is not too strong

Ok, what are your assumption for that and how high my winrate have to be to beat the rake?

Its the same structure as NL50 online, so it's not that bad.
I understand you pay a ton of rake, in €'s but relative its the same structure.
Ofc the line up has to be "good" (bad) enough to beat it.

NLH50 online is still a beatable level without needing superior skills and the win rate exists (1 to 4 bb/100 plus rb and the same for PLO). As so, the live 200 game should be beatable with less skill (5bb rake cap). It takes time to learn to beat a game like 50 online.

In Spain, that 400 or 500 game is generally with a 10 € rake cap, in case it runs, as omaha is more popular as a live game (can't find spots to play as many hands in nlh), although additionally to 200 tables one can generally expect one 400 or 500 nlh game running also (generally not at small places), but as it looks like, it could be the highest running, while the plo1k could be a regular game (in spain) and possibly plo2k also running.

In Scotland and Ireland they might have 6-card omaha instead, and the nlh in Scotland is with a 5 £ cap (the american style rake cap) at nlh200 (highest nlh running while the 6-omaha is with 5/5 blinds 3 times per week in Glasgow -- I don't know its rake). In London the rake is also a bit more reasonable (Spanish rake). While in Amsterdam it is 20 € cap (minimum).