Enpass is a really nice password app that works on Linux, and allows you to sync with various cloud providers. I have since switched to Password Store though which is open source and uses GPG for encryption, so you can pick your own algorithms.
[1] https://dl.enpass.io/docs/EnpassSecurityAssessmentReport.pdf
Enpass always worked seamlessly, and it was a one-time purchase for me back then. (They changed it to a subscription model a year ago)