Wasabi is a coinjoin and the money that would be made should be from coinjoin. I am not using Exodus because it is a close source wallet but it supports altcoins and it may support third parties sites that can be used to convert from one coin to another. Electrum developers are not making money from anywhere.
Do Electrum devs have any donation link? I don't think people won't mind if they do that because a lot of people are using their wallet with satisfaction and it's a pretty good wallet too, easy to use and almost idiot proofed. It's pretty good that they care about their servers but the devs need some love too right?
I just checked Electrum's official website as well as their github and I also don't see any donation link mentioned like many other projects. So how can people donate and developers can receive donations to keep the project going?
I'm waiting for Electrum to release an iOS version, but so far there's no information about that. As of now I understand that since they don't get any revenue from it, it's unlikely that we will have an iOS version of Electrum wallet. This is really a pity for iOS users like me because Electrum is deservedly the best software wallet for bitcoin.