How to view Adobe pages written in Flash - without Adobe Flash Player (Chrome browser)?

There isn't.  Adobe announced Flash Player's end-of-life in July 2017, three and a half years ago, giving content creators, programmers, developers and IT experts over 3 years to migrate their Flash content to a different technology. 

For reference:

• https://theblog.adobe.com/adobe-flash-update/
• https://www.adobe.com/products/flashplayer/end-of-life.html

Major browser vendors are deprecating Flash Player support.  For details specific to each vendor, please refer to:

• Microsoft Internet Edge and Internet Explorer
• Mozilla Firefox
• Apple Safari - removed support in Safari 14, released Sept 16, 2020
• Google Chrome - removed support in Chrome 88, released Jan 19, 2021

For users attempting to view Flash content, contact the content creators and inquire about their plans to migrate their content to some other technology.

For enterprises dependent on Flash Player, please refer to the Enterprise end-of-life FAQ: 

• https://www.adobe.com/products/flashplayer/enterprise-end-of-life.html

Enterprise Enablement may be an option until such time all browser’s remove support for Flash.  Technical details can be found in the Flash Player Admin Guide, pages 28-35):

• https://www.adobe.com/devnet/flashplayer/articles/flash_player_admin_guide.html