That's why the only thing I bet on from home(online) is sports betting, the house edge maybe a little bit higher but you are getting an insurance that you are not getting cheated.
I think that most of the online casinos cheat, why? Because no one can detect if they cheat or not.
They can cheat and also to be considered a legitment business.
I would avoid using any of those online casino unless it's a dice game that can prove provably fair with Hash.
The truth is that we are never going to know exactly what happens, a casino does not need to cheat, it has a decisive advantage over the player already with the house edge, so a well run casino does not need to cheat their players, however there have been cases like that but it is impossible to know how rare that is, however sport betting gives no security either since matches can be fixed as well.