I use limewater for calcium and don't use trace elements.
Trace elements all come from the food I feed to my tanks and I do water changes to try to keep trace levels down closer to NSW
levels but probably never get them that low. Water changes merely replace water laeden with higher trace elements (and nutrients) and replace them with water of lower levels of trace and nutrient.
This has worked fine for me for over 11 years and I see nothing written anywhere that would persuade me to do otherwise.
My tanks total 850g plus sumps, and range from 20g up to 90g and all tanks are treated the same way except FOWLR
tanks which get less limewater.