Its going to be amazing! I did it one year ago and its been just wonderful and inspiring. I have 90% foss apps and no google services and it feels just... Right. Its a joy to be able to trust your phone again.
Discussion
Some apps break though. Banking apps don't work for me. Its annoying.
Good luck what that. I managed to sort all my issues and I. 100% functional. If you dig you may find the .apk files to download the bank apps hopefully. Also in case you're not using it, i recommend you to check out the aurora store for non foss apps