Neither the IAF nor VVS consider it 4.5th gen though. The Russians call the MKI 4+ and the Su-35S 4++. But neither are actually true 4.5th gen. Even when it comes to RCS, the MKI and Su-35S have 4th gen RCS, both sit between the Mirage 2000 and Mig-29S/F-16A.
Su-35 can't supercruise, neither can the Gripen E. And its lower RCS than Su-27 is still multiple times bigger than the Mirage 2000, never mind the Rafale or Typhoon.
MKI MLU will make it 4.5th gen, the same when Su-35S is upgraded with Su-57's radar and EW suite in the future. While AESA alone isn't a factor, both jets are missing a lot of other types of hardware. Both would have qualified for a 4.5th gen definition in 2012 or so, but after the Rafale, J-10C, J-16, Gripen E etc became available, the standard for 4.5th gen changed and the MKI has no real equivalence with most of these aircraft. Can't speak much for Chinese aircraft, but Western aircraft now have a lot of new technologies the MKI doesn't.
The only piece of 5th gen hardware the MKI carries to date is the Rafael BNET, which is also set to be replaced by a new SDR in the near future.
Basically, MKI will become 4.5th gen only after all these things are integrated.
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Even with all this, in another 10 years, it will lose its 4.5th gen status because new standards would have been created for the TEDBF and later batches of the LCA Mk2 and Rafale.
If you want to get into specifics, the MKI is a 3rd gen airframe with 4th gen engine and core avionics and only 5th gen mission computer and comm system. It has 3rd gen maintenance, 4th gen combat capabilities, 4th gen supersonic performance and 5th gen subsonic performance. We are stuck with the airframe, but the engine and core avionics need upgrades to get to 4.5th gen status.
Su-47 and Mig 1.44 may have had IWBs, but were not VLO. Both were RO, like Rafale and Typhoon. The Russians sacrificed operational efficiency for the sake of endurance. Both jets were designed for high speed and high agility, like Rafale and Typhoon, with EW providing survivability.
That bit about Rafale's RCS matching the MKI's is nonsense. It was peddled by Russian lobbyists.