Looking for an on-prem MFA solution for Active Directory and RDP

This is something I've been testing as well. I've recently set up Protectimus in a small proof-of-concept environment, and so far the experience has been very positive. The deployment was fairly straightforward, and it didn't take much time to get everything working.

At a high level, the setup involved:

Creating a Protectimus account and configuring the basic settings.
Adding users and assigning authentication methods.
Integrating Protectimus with the target service that required MFA.
Testing the login process with enrolled users.
Adjusting authentication policies where needed.
Rolling the configuration out to additional users after successful testing.

I'm still in the early stages of testing, so I haven't deployed it across the whole environment yet. At the moment only a small number of users are using it, but everything has been working reliably so far. If anyone has experience with larger deployments, I'd be interested to hear how it went.