A relatively old article (20/03/2019), quite critical about project 20386.
It is true that is very expensive, compared to the other projects. Maybe they can use it as a testing platform for new technologies or.concept, so that they will not have delays like the first gorshkov for new ships.
Anyway, we have already discussed in the forum, but the russian navy will probably benefit from a not too expensive corvette optimised for antisub operations.
If it is true what they mention in the article about reduts system needs for radar and other systems, it could be worth instead to put in ships smaller then a frigate (or in upgrades of old ships) either the modernised naval tor or shtil (naval buk) systems, maybe in conjunction with kashtan or pantsir gun/missile system.
In this case they could do a relatively cheaper antisub corvette around 2000 tons based on a simplified 20380/20385 or on an upgraded gepard class since they already mastered the construction of those ship classes.
Or, if they need a bigger endurance for antisub operation they could think again at the grigorovich class (if they can build them with russian engines) which has double the range and endurance compared with 20380 or gepard class.
The indians are building a large asw corvette, but, in order to have a decent endurance, they ended up having a ship with a displacement similar to a grigorovich class and the srmament of a grisha class (it is basically a overgrown grisha class with an helicopter)
the reason the admiral grigorovic frigates were relatively "cheap" was because they used proven "older" systems and older electronicts, sensors and radars, with less capabilities than the new ones (but not always the best and more expensive system is the ideal, since if pared with relatively short range weapons, it can not use the full potential anyway.