Support for OpenSSH Key Agent

Does or will WinSCP support Microsoft's OpenSSH Key Agent (SSH Agent v. 9.5.0.0) soon?

I want to log in via SSH using a sk-ssh-ed25519@openssh.com public key. The key itself is managed by KeePassXC and made available to the OpenSSH Key Agent as needed. With the current beta of OpenSSH from Microsoft (OpenSSH_for_Windows_9.5p1, LibreSSL 3.8.2), direct login via SSH already works. As HW Key I use a YubiKey FW 5.4.3, OpenSSH via Fido2.

Unfortunately, Pageant does not support sk keys, and the SK SSH Agent (a GitHub project) is not supported by KeePassXC.

Thanks for your post.

This request is being tracked already:
Issue 1682 – Support OpenSSH ssh-agent
You can vote for it there.

Though as stated there, please consider asking for this feature at the PuTTY project.