Adobe is using old authentication where Chrome does not allow for pasting/loading sharable PDF links to Chrome -- Firefox still allows this old authentication, so I am only able to edit sharable PDF links in Firefox. Error messages are below:

A cookie associated with a cross-site resource at http://assets.adobedtm.com/ was set without the SameSite attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with SameSite=None and Secure. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.

dc-core.js:2 Error in Logging serverHandler:
AdobeError
code: 400
details:
content: {status: "BAD_REQUEST", statusCode: 400, message: "One or more logs were invalid", details: {…}}
headers: {cache-control: "no-store, no-cache, must-revalidate", content-length: "145", content-type: "application/json;charset=UTF-8", expires: "Thu, 01 Jan 1970 00:00:00 GMT", pragma: "no-cache"}
status: 400
statusText: "Bad Request"

evTools failed to load SourceMap. HTTP error: status code 403, net::ERRHTTPRESPONSECODEFAILURE