I’ve had a standing desk for a few years now. I won’t go into all of the reasons why I love it, but there are many.
As for its affect on recovery - the rule of thumb is sitting is better than standing, but standing is better than walking. My legs definitely feel the fatigue at times at the standing desk. If I workout in the morning before work, I try and sit until lunch if it was a big workout. Usually I do my harder workouts at night so I can sit most of the evening. I Also find that I stretch a lot more throughout the day, which always helps.
Get a good recovery meal in and drink all the fluids and you should be just fine. Just don’t feel like you’re wimping out by sitting, some days your body just needs it.
Also, get really comfortable shoes and a floor mat 