Hi @Lumo,
1 - There are many posts in this forum about this topic, one is this one: How do you hedge your currency risk?
The conclusion here is that it doesn’t matter in which currency you buy the ETF as they are all mostly exposed to USD risk. So, if you buy VXUS in EUR it makes no difference. Have said that, I have most of my assets in CHF, will invest in Vanguard (USD exposure) and have some P2P in EUR
2- In summary: Mutual Funds costs way to much (management fee, etc)
3 - nobody really knows where the highest point is. Accepted knowledge says that the earlier you get in with your stock position the better your returns
regards