The level of difficulty dropped 6% at the first adjustment after...

The level of difficulty dropped 6% at the first adjustment after the last halfening. As the period of calculation for that adjustment included a period pre halfening it is likely to adjust down again . The website below is currently predicting down by just over 6%.
https://blockgeeks.com/guides/bitcoin-mining-difficulty/

https://btc.com/stats/diff

The aim of the difficulty adjustment is to keep the average time for block discovery at ten minutes .