how to change the default install location for installing Creative Cloud apps

How to change the install location of your Creative Cloud apps
https://helpx.adobe.com/download-install/using/change-install-location.html

Note if you've already installed the apps to your main drive, then you'd need to do what Adobe's help page says above and then uninstall + reinstall.

Since you say Adobe has changed the install process there is no other help I may offer

Try chat

Be sure to remain signed in with your Adobe ID before accessing the link
Do be aware that Adobe's staffing is impacted by the virus, so wait times are long
-you MUST make sure that your browser does NOT block ads, scripts, or pop-ups
-you MUST also allow 'cookies' in your web browser for the link to work
This link will go directly to the chat option
Type "Agent" in the chat box to bypass the chatbot and be connected to a person
-Meaning type in the word Agent without the quote " " marks
https://helpx.adobe.com/contact.html?rghtup=autoOpen
- or https://helpx.adobe.com/contact/phone.html
.
Adobe does NOT do support by email, so beware of answering anyone who sends you a private message
-click for more information about scammers https://tinyurl.com/10791730

Install on non-boot drive https://community.adobe.com/t5/get-started/moving-ps-and-lr-classic-from-internal-hd-to-an-external-hd/td-p/10945231