2/ The base had multiple image updates since 2022 and I made a graph showing the decline in stored towed artillery. Since the start of the invasion towed artillery pieces were removed at a rate of ~17.5 units per month, but there havent been any changes since May 2023. 
2/ As usual here is an overview of data for two of the most numerous systems in Russian service (BM-21 Grad and BM-27 Uragan). 
2/ Below you can see a chart showing the share T-72s among the tank losses recorded by Oryx. I got the data from raptorama7 on the @projectowlosint Discord. Although the decline has slowed over time a general decrease can be observed. 
2/ The updated Google Earth image is very clear, which helps a lot with identifying the guns. The IDs for 2024 are probably very accurate, but I am still not totally confident in my identififcations in the pre war footage. 
2/ As usual here is an overview of the D-30s stored at the storage bases counted from satelite images. As you can see the images used to count the number of remaining units are often quite old so the real number is likely much lower. 
2/ Below you can see a large table showing the numbers for each base including the dates of the satelite images that were used to do the count. All threads for the individual types are linked at the end. Keep in mind that some images are old and the bases might have changed. 
2/ First of all here is an overview of the numbers by base including the dates of the satelite images I used to make this count. We made some errors regarding this type which is why the numbers are different form the last count although there is no new footage. 
2/ First of all here is an overview of the numbers. This system seems to have one of the highest removal rates of all towed artillery, considering that by now likely more than 80% of their pre-war stocks have been removed. 
2/ Since there is a higher number of vehicles and bases here is an overview of the numbers. Russia has at least removed 288 (~48%) and some of the remaining 2S5 have had their gun removed. 
2/ As with the 2S4 finding the M-46 is easy since they are all stored at one base near Shchuchye which I usually refer to as Planovyi. This base has three spots with M-46 towed artillery holding 676 guns in 2020. 
2/ Finding the russian stock of 2S4 is not hard, since they are all stored at the 94th arsenal in Omsk. The numbers of 2S4 at this first spot have dropped from 193 in 2021 to roughly 120 in January of 2024, with few units being cannibalized. 
2/ The only storage base that had some visible storage of 2S19 before the war started is the 80th arsenal. You can see all 111 2S19 at that base in the image from 2021 below and until Feb 2023 none of them had been removed. 
2/ I have added a lot of satelite images from almost all spots where the 2S1 can be found in this thread. Here is an overview of the numbers including the dates of the imagery I used. 
2/ First of all the "new images" David is refering to are from May 2023, posted by @hizzo_jay and then stolen without credit by @UKikaski. The footage shows a small part of the 94th Arsenal in Omsk (55.021415,73.384938).
2/ First of all I looked at the 61st BTRZ in St. Petersburg, which had 211 T-80BV, 21 T-80U and 48 T-80UD tanks in the parking space in March of 2020. I have marked the T-80BVs in red, T-80U in yellow and the T-80UD in light blue (T-62 are marked in green). 
2/ The main problem is telling them apart from regular trucks. Below you can see a spot at the 109th with some BM-21 marked in orange which have the rocket pod clearly visible. The rest of the trucks could also be BM-21 with the pod stored seperately. 
2/ The 3018th was not that easy to count, since there were a lot of covered vehicles, which we counted as MT-LBs, but it is not impossible that they are BMPs. Almost all of them have been removed since the war started. 
2/ I have added some ground footage of the 111th and 2456th below and I think it is save to say that likely many more of the remaining BMPs will never see combat, especially from the 769th, 111th and 2456th. 
2/ Spot 1: Here you can see an aerial view of the first spot and satelite imagery from 10/2022, but also two images from the ground from the same spot before 2021. Clearly many of the BMPs can never be brought back into service. 
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