That isn't true, the only version of "ltsc" without the crap was ltsb 2016, after that it's closer to retail (or standard enterprise which has all of the same shit) and with the most recent version it's basically pro with a different name, presumably because people were using it for this when they aren't licensed to and the devices ltsc is designed for are likely older and/or have vendor supported drivers etc that don't require new versions and frameworks.
Unfortunately unless you have old hardware (on which win7 would be fine) then you can't run older ltsc/b anymore as they don't support dch etc.
Case in point: my Ryzen laptop requires new uwp for the realtek audio because apparently signalling input change on headset detection is hard, it won't detect headset and the only way to change from headphones to headset is in the uwp app, which is quite ridiculous but that's the windows world we live in now.
Also many of the "tweaks" mentioned in that repo are likely to break service imaging so if you do update, you'll end up in a perpetual updating/rolling back cycle.
Unfortunately unless you have old hardware (on which win7 would be fine) then you can't run older ltsc/b anymore as they don't support dch etc.
Case in point: my Ryzen laptop requires new uwp for the realtek audio because apparently signalling input change on headset detection is hard, it won't detect headset and the only way to change from headphones to headset is in the uwp app, which is quite ridiculous but that's the windows world we live in now.
Also many of the "tweaks" mentioned in that repo are likely to break service imaging so if you do update, you'll end up in a perpetual updating/rolling back cycle.