According to the snapshot size, it is divided into four levels: s0, s1, s2, and s3
S0. size of s0 is the smallest, including only the last block and the state of that height.
S1. --pruning everything: larger than S0 size
S2. --pruning default: larger than S1 size
S3. --pruning nothing: maximum size
The latest mainnet, testnet s0 and s1 snapshots, s3 is the archive node snapshot: