Jungle is not a verb, so its impossible for Japan to be jungled and why jungled is a spelling mistake.Except as opposed to China, Japan never had any experience fighting in desert environment. They already had incursions in Vietnam and other jungle regions way before the formation of Imperial Japan (as seen in pirate raids against parts of Asia in the 15th-16th century including Indonesia). On top of that they invaded Vietnam before they went into Malaysia and Indonesia nearly a year earlier (further than that if you count minor squads and platoons staying in French Indochina before France fell). That's not counting the jungle parts of China Japan fought in the Sino Wars (along with their colonization of Taiwan) and the fact Imperial Japan had geared their troops to fight in very Asian environments since its existence and the influence of the French and British military had on Japanese military thought (bought nations which had developed jungle warfare doctrines because of their experience in South East and Southern Asia colonies).
Unless you count battles in the Gobi desert as a baseline for Imperial Japan's performance but even that's waaaay different from fighting in the dunes of Arabia (and IOTL Japan had serious problems with Chinese armies and insurgencies in the Gobi and other desert regions-I recall one of the Chinese generals who consistently defeated the Japanese including in open pitch battles was a Muslim from an ethnicity that frequently lived or at least travelled through the Gobi).
Hell the Japanese got their asses whooped by Mongols who were backward compared to the Chinese at the time. Granted at Khalkin Gol they just received a big boost from Soviet armaments and training and they didn't exactly fight in desert conditions in the brief war with the Soviets. But there was already skirmishes before Khalkin Gol between Mongols and Japanese forces going as far as the Sino War and a problem Japanese advanced frequently had was running out of water as they tried to chase Mongol bandits and guerrillas (along with Chinese insurgents in the Gobi). Never mind the lack of oil, ammo, and other supplies which they had OTL in the Gobi.
Now when you go into the Arabian deserts which is even more taxing on the human system in terms of dehydration and lacks even more water than the Gobi........... Along with the sand dunes being a different beast on movement than the Gobi's more flat and rocky terrain..............
Never mind the fact Japan did not have experience in desert warfare in general and their performance in the Gobi leads a lot to be desired. At least in Malaysia and Burma, they already had a base to build one fro as far as the 19th century in Taiwan (even as far as feudal Japan if you want to include Japanese pirates, raiders, and mercenaries for hire abroad in other Asian wars). And isn't a part of Japan somewhat jungled? I recall the Imperial Army trained in the forest parts (some which resemble Vietnamese jungles) along with mountain training decades before the war.
However, that's interesting information that is new to me and gives the British commanders no excuse for their complacency in 1941.
Though the furthest the Japanese would realistically want to go inland was the defensive perimeter of Aden. OTOH if the Japanese were serious about fighting in the Arabian desert, it would have had to be planned for some time because it's so far from Japan, which would have given them some time to study the problems of surviving in deserts and made preparations for it. For example they could ask their Italian allies, who had been in Libya for 30 years by 1941 for advice.