Yep - it was clear from the beginning that hospitalized patients throw a ton of clots, so it's been in the guidelines since 2020 to treat anyone presenting with Covid symptoms with prophylactic thinners;

> Hospitalized nonpregnant adults with COVID-19 should receive prophylactic dose anticoagulation (AIII) (see the recommendations for pregnant individuals below). Anticoagulant or antiplatelet therapy should not be used to prevent arterial thrombosis outside of the usual standard of care for patients without COVID-19 (AIII).

From what I understand, there doesn't seem to be much benefit for overall treatment of the disease (e.g. sick people's lungs don't get better more quickly) but it's preventing tons of PEs and strokes so that's obviously very valuable.

https://www.covid19treatmentguidelines.nih.gov/therapies/ant...