Let's assume India occasionally patrolled f4-f8(a claim that is still unproven) Patrolling occasionally does not mean control. You control by either pysically occupying land with your own feet or by building infrastructure. India did neither, whereas China occupied that area since after 1962. By your logic, china controlled up to finger 2 because it patrolled there.
And when did VK Singh refer to Pangong? There are dozens of areas where India has a tactical advantage it could use to violate the lac, Pangong, and most of ladakh, is not among them.
Well it is proven because LAC lies between F4 and F8 and VK Singh is on record saying that India patrolled past LAC far more frequently than China has and he also said that India ingressed far more. India claims to F8. India patrols its claims. Logically and given the source, India has in the past patrolled F4 to F8.
Patrolling doesn't mean control and I never said that. But China was certainly wanting India to stop patrols. The Indians have now.
Read our posts. Our posts address all your points but you literally repeat them and offer no real proof of anything beyond India has build two small tiny insignificant footbridges somewhere. And in June 2020, PLA vacated a flooded river bank. Where the PLA went is anyone's guess but fact remains that India officially is in talks with China to ask PLA to vacate Indian claims in depsang, gogra, hot springs until today. This is confirmed by India's government and media on both sides.
Oh and continued spamming of debunked nonsense and obfuscation with satellite images with random lines drawn and ridiculously conclusive statements made from out of date, random satellite images showing really nothing and occassionally some dots. No idea where exactly on the map these are, where in relation to claims and troop movements, and nothing to suggest where troops have gone. Somehow a few random dots moving in and out of a satellite image means PLA went back 20km.