Most of these are medical, advising, and EOD. Above article even says explosive handling.

Another sensationalist title and selectively worded article, making it seem as if the US is going full crusade.

Sources:

https://www.wsj.com/livecoverage/israel-hamas-war-gaza-palestinians/card/u-s-picks-troops-to-prepare-for-potential-deployment-to-middle-east-0pYNLxiZ7dmUbN6NxCML - Says Medical and advising staff

https://www.usatoday.com/story/news/world/2023/10/16/israel-hamas-war-live-updates/71201737007/ - says Medical and Gate crossing security

https://www.nytimes.com/2023/10/17/world/middleeast/pentagon-us-troops.html - Medical and advising

https://www.military.com/daily-news/2023/10/17/pentagon-orders-2000-troops-prepare-deploy-israel-war-prompts-growing-us-military-presence.html - take this with a grain of salt, since it's a military source. Says the most combat troops deployed were special forces to secure the embassy.

https://thehill.com/policy/defense/4259025-pentagon-puts-troops-on-notice-to-prepare-to-deploy-to-support-israel-reports/ - advising and medical

https://www.cnn.com/2023/10/16/politics/us-marines-pentagon-israel/index.html - Medical and logistical support

https://www.timesofisrael.com/liveblog_entry/pentagon-sends-deployment-notices-to-2000-us-troops-over-israel-hamas-war/ - Medical, explosive ordinance, and advising

https://www.forbes.com/sites/mollybohannon/2023/10/16/2000-us-troops-may-deploy-to-middle-east-amid-israel-hamas-war/ - Medical or advising support, NOT combat roles

https://www.washingtonexaminer.com/policy/defense-national-security/us-military-roughly-troops-prepare-deployment-israel-hamas - US officials do not intend to have US troops see combat

Based on these sources, the US being there is officially for posturing and mostly medical support, as well as advising. Several of these sources also state that there are American citizens among the hostages.