Reminding on omouamua comet

According to the wikipedia the following is reported about omouamua

ʻOumuamua is the first known interstellar object detected passing through the Solar System. Formally designated 1I/2017 U1, it was discovered by Robert Weryk using the Pan-STARRS telescope at Haleakalā Observatory, Hawaii, on 19 October 2017, 40 days after it passed its closest point to the Sun on 9 September. When it was first observed, it was about 33 million km (21 million mi; 0.22 AU) from Earth (about 85 times as far away as the Moon), and already heading away from the Sun.

ʻOumuamua is a small object estimated to be between 100 and 1,000 metres (300 and 3,000 ft) long, with its width and thickness both estimated to range between 35 and 167 metres (115 and 548 ft).[11] It has a dark red color, similar to objects in the outer Solar System. Despite its close approach to the Sun, ʻOumuamua showed no signs of having a coma, but did exhibit non‑gravitational acceleration.

From the same source the non-gravitational acceleration is discussed

On 27 June 2018, astronomers reported a non-gravitational acceleration to ʻOumuamua's trajectory, potentially consistent with a push from solar radiation pressure.[59][60] Initial speculation as to the cause of this acceleration pointed to comet off-gassing,[22] whereby portions of the object are ejected as the Sun heats the surface. Although no such tail of gases was ever observed following the object, researchers estimated that enough outgassing may have increased the object's speed without the gasses being detectable.[61] A critical re-assessment of the comet hypothesis found that, instead of the observed stability of ʻOumuamua's spin, outgassing would have caused its spin to rapidly change due to its elongated shape, resulting in the object tearing apart.[8]

the comet borisov is a second candidate for such a comet

https://en.wikipedia.org/wiki/2I/Borisov