Those are the Flanker aircraft delivered to the Russian Air Force. Then you have the Su-35s they made for the Egyptian order.
If you want to determine Russia's current industrial output capabilities you should take those into consideration. Even then these numbers are way off from peak production like a decade ago.
I expect the Su-34NVO and Su-30SM2 production to ramp up. Now that these aircraft are available, imports of electronics components used in them were replaced. There are still quite a few Su-24 aircraft to replace. Plus some airframe losses in the Ukraine conflict. The Su-35 does not use any imported components that I know of, but the factory was busy building the Egyptian order, and it is not like Russia is lacking Su-35s. Does it even make sense to buy a lot of these aircraft when the Su-57M is already in testing? The Flanker HUD used to be made in Ukraine, and some Flankers used LCD MFDs imported from France. Both of those components were replaced in the Su-30SM2 and Su-34NVO. The Su-35 already used Russian design LCD MFDs I think and now the others got the same treatment. A modern Russian HUD was also designed, using digital electronics to replace the analog Ukrainian design, and put into serial production.
Is it? The more control surfaces you have the harder it is to model the airframe. The harder it is to write the fly by wire software. And the harder it is to make the hydraulics for it. The J-20's main airframe difficulties are the canard design. But China already had made the J-10. So they had experience modeling canards and writing the fly by wire software for them. The Su-57's LEVCONs are unique and no other aircraft uses them. It is also the first aircraft to be designed to take TVC into consideration to reduce the area of the vertical control surfaces. The J-20 does not even have TVC. The Su-57 is a second generation TVC airframe. The J-20 uses DSI inlets which are way cheaper to design and manufacture at the expense of kinematic performance loss. There is a reason why the supposed to be cheap F-35 uses them and the F-22 does not.
Of course Russia has less budget and industrial capacity than China. Even the US cannot match China in fighter aircraft production when you consider it with all its satrapies put together. When people say "the US produced these F-35 or those F-35 this year". A lot of those F-35 parts are made in partner countries and/or bought with those countries money. And we are comparing a single engine aircraft with the mostly two engines that China is producing. There is a huge, huge, gap in production between the US and China and it is definitively in China's favor. China makes way more engines and the airframes are way more complex.
As for Russia, they have more fighter aircraft in service than the UK and France put together. More than Japan. So I do not know what is your problem really. Should they just produce aircraft for the heck of it? Most of their in service airframes are like a decade old at this point. At least the Su-30/34/35. If Russia really needed airframes for whatever reason quickly, they have loads of Su-27 airframes in mothballs, hundreds, which can be upgraded to Su-27SM3 status. While the Soviets had way more airframes, those were short ranged single role aircraft for the most part. China has not been replacing its J-7s 1:1 either.
IIRC Russia has mothballed all its MiG-29s. Even the remaining MiG-29SMTs have been put into pasture. All the stock Su-27 airframes were also retired and you only have SM or better models in service. The MiG-31 has mostly been upgraded to the BM variant. The major weaknesses from my point of view are the remaining Su-24 models, lack of replacement for the Su-25, and the fact that the early Su-30 aircraft have really weak avionics by modern standards. The first and last problem are taken care of by the Su-34M and Su-30SM2 designs. And the Su-25 might be replaced with drones and attack helicopters. After that you will have the MiG-31 replacement but I doubt it will happen before 2030.
If Russia did not have money they would not fund upgrades for all three of their bomber aircraft models at the same time they develop a new model. You continue making this argument to death. But it does not make it any more true. For whatever reason you seem to think all problems can be solved with money. But technical issues take time to be solved. The Su-57 is not produced in larger numbers because the design is not considered mature enough by the Russian Air Force and there is no pressing requirement for it either. It is as simple as that. Would you prefer Russia do like the US and build like a hundred of these aircraft and then relegate them to be uber expensive trainers?