This would only really be viable if Epic followed some kind of LTS plan, which they don’t.
There are quite a few massive bugs in 4.22-4.24. The only way to fix these will be to upgrade to 4.26+ (that’s if they don’t just break even more things in 4.26).
A good 30% of people are also still on Windows 7 and I would wager a big chunk of developers (at least from my experience) are still working on it - Windows 10 is an absolute mess sometimes. If there isn’t a good reason to drop it (‘DX12 doesn’t work’ isn’t - other platforms supported by Unreal don’t have DX12 either) then why drop it?