Chiming in: this matter, which was first brought up in September 2023 in this thread, remains unresolved in my up-to-date version of 1Password. According to earlier posts, this was raised with the development team that same month and again in March this year. What needs to happen to get this addressed without further delay?
Mac & PC users expect ⇧⌘X (or its PC analog) to be universal for text strikeout; when so much text editing happens with web-based editors (Docs, Word for Web, webmail), hijacking that command for a password management program is an instance of poor judgement. That the issue has remained unaddressed to now is an instance of poor management, particularly when the command is entirely redundant in 1Password. Within Mac OS, ⇧⌘space already brings up the same function from anywhere in the Mac OS environment. Further, it remains impossible to change this setting within 1Password for Safari: there is no keyboard shortcuts option in this version of the app.
Poor choices happen all the time in software development. These are all forgivable when the provider listens to its users and makes necessary changes. It's beyond irksome when it seems like the client is being ignored, now all these months later.