Chaurasi lakh Joon.

Yes, there are many a references to 84 Lakh count. However as best as I know they are only to refer to a large enough number beyond the comprehension of a common man. And also to refer to a familiar number to convey the message at hand.

However Gur Sahibalso writes:

ਅਸੰਖ ਨਾਵ ਅਸੰਖ ਥਾਵ ॥ (ਮ:੧, ਪੰ:੪)
Beyond any count are the names (species) and beyond any count are palces (locations).

After reading Gurbani, No one can say there is anything like JOONA as mention in other faihts.
Please refer to

ਰਾਮਕਲੀ ਮਹਲਾ ੫ ॥
ਪਵਨੈ ਮਹਿ ਪਵਨੁ ਸਮਾਇਆ ॥
ਜੋਤੀ ਮਹਿ ਜੋਤਿ ਰਲਿ ਜਾਇਆ ॥
ਮਾਟੀ ਮਾਟੀ ਹੋਈ ਏਕ ॥
ਰੋਵਨਹਾਰੇ ਕੀ ਕਵਨ ਟੇਕ ॥੧॥ (ਮ:੧੫ ਪੰ:੮੮੫)
The air mixed with air, The light (life) went back to light (life), Dirt (body made up of elements) became dirt agaun, so what is basis / reason for crying?
……………………………………………………………………
ਕਹੁ ਨਾਨਕ ਗੁਰਿ ਭਰਮੁ ਚੁਕਾਇਆ ॥
ਨਾ ਕੋਈ ਮਰੈ ਨ ਆਵੈ ਜਾਇਆ ॥੪॥੧੦॥ (ਮ:੫, ਪੰ:੮੮੫)
Nanak claims that supperstition is unlifted neither has anyone died nor have anyonecome or gone.
(Reincarnation rejected)