Yep - that's an NFHS rule - 1 hour max before duals and 2 hour max before tourney. Weigh-ins every day of a tourney with a 1 lb allowance multiple day tournaments. Weight management and weigh in regulations have come a long way over the years. "Back in my day" we could cut up until my weight class got on the scale, we had a sauna in our locker room, there was no certification... and there were many times I paid for that.
https://cdn1.sportngin.com/attachments/document/239f-3089848/NFHS-WR-Rulebook.pdf
Idaho HS weight management: https://idhsaa.org/asset/WRESTLING/Wrestling 24-25.pdf
No matter what rules you have, there will always be kids who will cut a lot of weight and coaches who will probably be ok with that. If they end up wrestling in college hopefully they figure out that the way they cut weight will directly affect their performance and outcomes. I know at Oregon State they do a pretty good job of focusing on nutrition and healthy weight management because they know it affects performance. It's actually a part of their budget to provide this to the wrestlers.