Regarding you're questioning if the change or ram between 16Gb or 32Gb will not bring a lot of "speed" capabilities if you're not pushing past 16GB utilization (most people do not)
maybe you should consider upgrading your CPU instead of an actual performance upgrade in speed processing I looked at the specs from Asus website
ASUS Prime motherboards are expertly engineered to unleash the full potential of AMD and Intel processors. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, these ASUS motherboards provide daily users and DIY PC builders a range of performance tuning...
www.asus.com
And you could easily upgrade that Ryzen 5 35600x with a Ryzen 7 or even Ryzen 9 and keep you going for a few more years, where upgrading your ram isn't going to.