I use a KVM over IP.
I made my own tiny pilot device for less than £100 and it has worked flawlessly for a few years.
This assumes your server has a hdmi output, if not you will need a VGA to hdmi or similar converter, danger of it becoming a bit of a hodge-podge of adapters, but hey, if it works, it works!
Mostly use mine to view my hardware CCTV box. Means I can keep it hidden away but still easily get access to the streams for live viewing or playback.
Works well enough and was easier, less time consuming than the rabbit hole of selfhosted CCTV software.
Cost less than £50 to get setup and the software is available in a free version.
I love love loved, call Jonathan Pie. Very funny.
Some suggestions.
Three bean salad - you have to start at the beginning, it won't make any sense otherwise - it barely does to me and I've heard it all. Surreal comedy.
Hamish and Andy - again, start at the beginning, its good clean fun. Just three mates doing silly, harmless things.
Where there's a will, there's a wake - Kathy Burk interviewing interesting people about thier dream funeral. Adult humour.
The boring podcast - short lectures by different people on things that sound boring but become fascinating such as, Hb pencils, double yellow lines, street furniture.
Pop culture parenting - they take a famous scene from a different movie each week and break down how it shows good or bad parenting techniques. Great for anyone with young kids.
I've several more if those don't tickle your pickle.
I've no experience with either of those devices. So long as they're comparable in terms of USBC features (otg) to emulate the keyboard and mouse then you should be good as the overhead of running the software seems to be minimal from my usage.
Without that, you'll get video without keyboard and mouse support.