So I just tried this with a blue Yubico Security Key with 5.4.3 firmware using Yubico Authenticator 6.2.0 on Linux, and I was successfully able to manage my resident credentials using the Authenticator after setting a PIN and saving a resident credential via https://webauthn.io.
I'd check your firmware versions, update your Authenticator, ensure you have a PIN set and ensure you're correctly saving a resident key on your device when registering with a service.
For Chrome, a visit to chrome://settings/securityKeys[1] should do it, but I just tried it in a Windows VM and it is not present in the menu, while it is present on Linux and macOS.
I'd check your firmware versions, update your Authenticator, ensure you have a PIN set and ensure you're correctly saving a resident key on your device when registering with a service.
For Chrome, a visit to chrome://settings/securityKeys[1] should do it, but I just tried it in a Windows VM and it is not present in the menu, while it is present on Linux and macOS.
[1] https://chromium.googlesource.com/chromium/src/+/HEAD/device...