Bellinger played hurt during May and June 2023, with a .179 BABIP
His 2020 through 2022 BABIPS were .245, .196, .255
2023 the BABIP was up to .319
The result of a change in approach? The result of improved health? Probably a mix of both. There was an article posted here some time ago, the writer suggested Bellinger's struggles were due to swing changes to accommodate his health/physical condition. In 2023 he may have found a swing/approach that works.
Going forward it is not unreasonable to anticipate a WAR floor/ceiling of 2 and 4, with the 2020 to 2022 seasons being health related career anomalies.