Oops, looks back to normal (10.6G) already. Noise.
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.6G .bitcoin/indexes
3.4G .bitcoin/signet
43.1M .bitcoin/wallets
97.6G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.0G .bitcoin/