here my facts about this issue:
- I use Opera since decades. And always installed from Opera Homepage, resp. their FTP-Site. Never "Bundles"!
- It runs on 2 PCs Windows7 and 2 PCs Windows10.
- The issue ocurred on all 4 along with the "sheduled" autoupdate from Version 66.0.3515.103 -> 66.0.3515.115.
- The tray icon only emerges on Windows10.
I would really appreciate to know what this process is for....