Dumb questions: Can I use my lightning wallet to keep Bitcoin? Like if I want to invest/buy fractionally? Or should I use some other kind of digital wallet? Or is there something else that is better than a digital wallet? I noticed there was an arbitration agreement in the consent portion of a wallet app that I was looking at opening, so I didn’t go forward… is they another way to have a personal wallet where I don’t have to sign a consent to arbitration with a company?