Do you need separate glass cooking utensils for meat and dairy?

what are the rules of glass utensils such as drinking glasses Pyrex dishes so the truth is that there's a big difference here between ashkenazim and sarum the ruling for sarum is that glass does not absorb which means that theory a glass Pyrex that was used to cook meat could theoretically after it is cleaned very well be used to cook Theory not that we're recommending that in practice but in theory that's what could be done certainly to use it a a drinking glass for both for meat meal Dairy meal as long as it's washed out very well so for STM that would pose no issue at all for asazin though asazin hold that not only does glass absorb but there there are those that say that and and this is how ashim follow this for PES that it can't even be capured it has the status of ceramic which means that not only does it absorb but absorbs any it cannot be what does that mean practically well if I'm only using my glasses cold so then there's no absorption in them anyway so if I only drink in them cold milk juice soda so really they can be used at both a meat or a dairy meal because there's no cashous issue with them if I'm going to use my Pyrex dish though which is going to be used hot then I have to designated either milk or meat I cannot use it for both and if I do food would become forbidden now when it comes to washing these I should designate them as either I treat them as dairy or as meat I shouldn't put them both into a meat dishwasher and into a dairy dishwasher so I I could serve them at both meals because they always used cold but in terms of the washing if it's washed in a meat dishwasher it would be considered meat at that point and therefore it shouldn't be also placed in the dairy dishwasher