I hope they continue 22350 production even after starting with 22350M.
The 22350 is not a bad design and in many ways is good enough for a range of roles and tasks. The 22350M is an upgrade or improvement that might be better suited for some more demanding roles.
They essentially have four fleets and one flotilla... the Caspian Sea flotilla is not exactly demanding but perhaps one or two frigates wouldn't hurt once the other fleets are sorted in terms of numbers.
I would say frigates are about as much as the Baltic Fleet would require because they are largely stuck in a bottleneck anyway and Russia has little need to project power in that direction anyway except to ensure their shipping does not get interfered with.
The Black Sea could probably do with more frigates, but I think the Pacific Fleet and the Northern Fleet would get the bulk of the frigates of both types... if we say 6 of the smaller variety in the Baltic Fleet and say 8 of the smaller type 22350 in the Black Sea Fleet plus perhaps 6 of the larger 22350M in the Black Sea Fleet too, and then maybe 6 of the smaller 22350s in each of the two major fleets and perhaps 8 of the larger 22350Ms in each of the fleets of the north and east.
That would work out at 6 BF and 8 BSF and 6 NF and 6 PF which would make 26 ships in total for the 22350 and 6 BSF and 8 NF and 8 PF which would make 22 project 22350M.
By the time they have made those they will have had some experience with the enlarged project 22350M and should be able to get a destroyer design ready for production, which will probably be a further enlarged Project 22350M with nuclear power and increased armament and endurance of course.
Ideally they should be laying down their first destroyer design after a few years experience with the 22350M so they can use that experience to perfect the design.
Why? After the current order of 22350s they will have enough to defend their territorial waters. They should then focus on larger vessels like the Super Gorshkov and Lider in order to protect their interests in the open ocean and on other continents.
They are both just Frigates and while they could sail to other countries they wouldn't last long against most opponents because of a serious lack of armament persistence.
Super Gorshkov will be a useful ship in an around Russian waters, but not really something that will dominate the waves anywhere else.
Probably would be rather interesting to evolving and developing countries around the world who want a modern navy with capable ships that are not nuclear powered.
Japan is a set of islands, with economy extremely dependant on sea routes.
It is surrounded by nations having territorial disputes for multiple territories.
Russia is a giant landmass, with bulk of it's export carried by land corridors, or seas that can be considered their own.
We are comparing apples to oranges here. Russia won't have the same imperatives Japan has.
To be fair Russia has relied on Europe for its exports to the rest of the world, a situation that has clearly changed and Russia now needs to deal with its exports on its own and not rely on middle men to earn good money getting Russian products to their international customers.
This means they need to work on their trade routes and expand their capacity to get their products to customers around the world without risking western interference because they will continue to interfere with Russias economy every way they can.
But this does show that at least in terms of crew automation the Admiral Gorshkov design is starting to fall behind.
One of the problems of the LCS ships for the US navy was that the ships normal compliment of crew was too small to maintain the ship at sea. They didn't keep up with maintenance because there were not enough crew available to do it... things like painting the exterior of the ship before entering a harbour on a visit etc etc.
Most ship hit by a missile will be unserviceable anyway. It's not a disadvantage to have smaller crew.
In a modern war it is possible that a small drone might damage the ship only...
Most of the Japanese "Destroyers" are Frigates.
The Japanese Navy has been seriously under estimated mostly because they decided to take on the US Navy during WWII... earlier conflicts against Imperial Russia, or just their paper potential before they took on the Americans in the Pacific and you would say they are a world class force. Things like poor code use that allowed the enemy to know what they were doing before the troops on the ground even got their orders can limit the performance of any force.
Their navy planes were world class, the much vaunted British Navy could not have defeated the Japanese Navy on their own during WWII... or now.
Designing and building ships takes time and planning... I suspect their new destroyers and cruisers will be nuclear powered and possibly all electric drive too which makes it a steep learning curve but also potentially a very capable and powerful fleet too.
They have shown they have compact powerful nuclear power modules that would be ideal for use on shipping...