systemctl --failed

UNIT                           LOAD      ACTIVE SUB    DESCRIPTION

● multipathd.service not-found failed failed multipathd.service
● systemd-tmpfiles-clean.service loaded failed failed Cleanup of Temporary Directories
● systemd-tmpfiles-setup.service loaded failed failed Create Volatile Files and Directories
● tor.service loaded failed failed Anonymizing Overlay Network

I don't know that why do work with chrome and vivaldi and do not work with opera because both installed in system.

In T3867#68457, @JoshStrobl wrote:

Opera would use PPAPI, just like Vivaldi, because it is based on Chromium. If it doesn't, this is something they should address. The Software Center and Third Party merely provides examples as to browsers that would use the respective APIs.

In T3867#68451, @JoshStrobl wrote:

sorry my english

it is included with vivaldi package via /opt path or is not an adobe package, only two different state in distro.

Adobe-flash player files is not founded in/with the opera-stable package, therefor i installed at its files manually, the reference it is this.