The pic isn't clear but the calculus deposits seem to be present on the teeth which causes the gums to get inflamed
Next Steps
the main treatment is to get scaling ( cleaning of teeth) as and when the corona pandemic situation gets normal
Health Tips
for now use an extra soft tooth brush and do brushing in circular motion gently. Don't do harsh brushing
use chlorhexidine mouthwash
apply and massage the gums with a gum paint of any company
do all these things twice daily