What evidence do people expect there to be as proof for Moses’ existence? We have evidence from the Bible. Historical method prioritises the primary documents
There were not extraBiblical evidence for people, places and empires in the course of history and skeptics claimed the Biblical record could not be trusted.
Consider that sceptics did not believe the Hitties existed because they were only mentioned in the Bible. From an article for the July 1882
British Quarterly Review, William Wright writes pages 53 to 54
In
1906
The Hitties are not only the example of sceptics clamining there was not extraBiblical evidence for an empire, person or place and claiming they did not exist and being proven wrong. King Sargon, King David, Pool of Bethesda etc are other examples of scholars claiming there was no extraBiblical evidence and thus that doubted their historicity and being proven wrong
There is a book called, ‘Israel in Egypt: The Evidence for the Authenticity of the Exodus Tradition’ by James K Hoffmeier, who is professor of Bible Studies and Archeology. He looks at the current Egyptological evidence for the Exodus and he argues that it supports the Biblical records
bibleprobe.com/exodus.htm
There are Sinatic inscriptions in Wadee El-Mukattab, Sinai that record some of the events of the Exodus from a non - Hebrew source
I believe I read on this forum before, that it would be very unlikely that the Egyptians would record the events of the 10 plagues in tablets or on markers/monuments because back then the only things that were memorialized in history were triumphs of the king and of the country. The whole Exodus would have been a humiliating episode for the Pharaoh and would not have been something they wanted to commemorate or even remember