Hi @cm,
I tested it again. The option was still not shown in my VS2022, but found the option was available in VS2019.
I have reported it to Product Team, please check the ticket:
"Go To Definition" is missing in .aspx file - Developer Community (visualstudio.com)
You can vote and add your comments on that ticket to track the process.
If there is any update, I will sync here.
Sincerely,
Anna
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