Just because Israel and surrounding Arab nations have found some temporary common ground to cooperate doesn't mean this would last forever.
Who told you it is temporary? There are Arabs here why not ask them? Let's take Anwar Sadat who led Egypt into the Yom Kippur War in 1973 and nearly defeated the Israeli's. I actually remember this event as there was considerable discussion about this in household between my dad and his friends who would be glued every evening watching BBC reports.
As somebody who read a lot about this and subsequent US documents being declassified the Israeli's literally came so close to being routed that Washington began even preparing US Army to be deployed to prevent Israel being destroyed. In the meantime massive US air supply and possibly even cover US military being used the Egyptian spearhead was brought to a halt by massive Israeli air attacks - the Egyptian infantry displayed valour and grit that even their enemies appreciated.
This has profound effect on the Egyptian
political and
military elite. They woke up to the reality that they were never going to win even when they gave 100% their best effort. The fact was inside the Israeli glove was American fist. Since deeating USA was not possible defeating Israel was not possible.
It's important to understand this reality ws concluded by the entire Egyptian elite. Thus they began to look a way out and in 1978 Anwar Sadat signed the Camp David Accords with Israel under US supervision. Egypt got back it's occupied Sinai and massive annual US aid which has persisted to this day.
Just like Pakistan has crazies so did Egypt who thought Sadat had sold out Egypt. The fact was Sadat had not sold anything. He was just the face of a elite who had concluded victory was impossible and peace was best way forward. Sadat was killed by nutters. But 43 years have pasased. Governments have come and gone but Egypt has stood by Camp David Accord. The point being it was not a personal wish of Sadat but the entire Egyptian ruling order.
Recentlu UAE has also sought recognition with Israel. Again it would be dumb mistake if we think that one man decided this issue. The Sheikhs would only have done this when they felt sufficient numbers of the ruling Emirati elite was on board. Also they would have felt the pulse of their people. If Emiratis felt so strongly about recognition you would have seen demonstrations. There have been non. Also the Israeli's would not have felt safe.
For instance if Imran Khan was all of sudden tomorrow to make peace with Israel with Bajwa in agreement. What do you think would happen? Groups like TLP would have millions on the streets. Soon enough PMIK would be forced out.
The fact is significant number of people who matter or carry influence within these Arab countries are part of or ready to conform with these decisions.
MBS was ready to make peace with Israel. I think within Saudia there are still some sections who are not happy with peace with Israel. However it appears that change is afoot and it's only matter of decade before Saudia also makes peace with Israel as MBS slowly get's to consolidate his views as idea of Saudia 2030 with NEOM project. This would turn into the next Dubai if peace with Israel comes about and he attracts Israeli/Western investors.
It is not a accident NEOM is going to be built 10 minutes from Israel. There will come a time when NEOM will be full of Israeli tourists and Pakistani workers will be keeping the hotels functioning like we see in Dubai today.