Below are some interesting articles on Hydration that you could review:
https://trainingpeaks.com/blog/how-to-avoid-hyper-hydration/
https://endurancebikeandrun.com/blog/2020/2/6/hydration-and-nutrition-for-your-long-bike-rides-races-and-events?format=amp
https://www.bicycling.com/training/a20011394/how-to-fuel-on-rides-of-every-length/
https://bicyclingaustralia.com.au/news/hydration-the-simple-key-to-endurance/
https://emmittsmithgranfondo.com/cycling-hydration-101-tips-to-help-improve-performance-for-cyclists