Israel is a strong US ally in the region. The ties between the two countries have become ever more important as the Trump administration works closely with the Israeli government to achieve a variety of policy objectives.
As discussed on Aljazeera in August
Under understandings dating back decades, Washington has refrained from Middle East arms sales that could blunt Israel's "qualitative military edge". This has applied to the F-35, denied to Arab states, while Israel has bought and deployed it.
However that same article makes clear that Israel's stance on this matter has not changed. Despite Trump's recent statements it is not clear that such changes were part of the UAE/Israel negotiations, nor that such sales will actually go ahead.
“They’re very wealthy countries for the most part, like the UAE, and they would like to buy the fighter jets, and I personally would have no problem with it,” Trump said. “Some people do, they say maybe they go to war.”
It could be assumed that establishing UAE/Israel diplomatic relations is a first step to changing this stance. But at the moment I don't believe there is solid evidence of this as a process or stepping stone.