Goto the URL opera://settings/siteData, type chase.com in the search-cookies field, and click "remove all shown". Then, try again.

If that doesn't work, try with your extensions disabled and Opera's adblocking and tracking protection disabled.

If that doesn't work, test in a private window.

If that doesn't work, clear cookies for chase.com again, goto the URL opera://browserjs, disable JS workarounds, open a new tab, goto chase.com, and try logging in again.

If that doesn't work, goto the URL opera://about, take note of the "install" path, close Opera, open up a command prompt, and run this command:

"C:\Program Files\Opera\launcher.exe" "--user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36"

(adjust the path to your launcher.exe)

Then, when Opera starts, clear cookies and disable browser.js again, and try to log in again as a test.