Inclusion Criteria:  Adult patients and their adult care-partners: At least 18 years old; Either have a physician-provided diagnosis of FSGS or IgAN (with renal biopsy confirmation of the diagnosis) or being a care-partner for someone with a physician-provided diagnosis of FSGS or IgAN (with renal biopsy confirmation of the diagnosis); Able to provide informed consent;  Located in the United States (US), United Kingdom (UK), Germany, France, Spain or Italy.  *Care-partners (paired with adult patients) (defined as the individual [e.g., spouse, parent, sibling, relative, or friend] providing direct disease-related support to the adult patient.  **All patient groups including chronic kidney disease (CKD) stage 1-5, with or without dialysis, and with or without kidney transplant will be included.  Care-partners/parents of children/adolescents: At least 18 years old; Being a care-partner of children/adolescents with physician-provided diagnosis of FSGS or IgAN (with renal biopsy or genetic confirmation of the diagnosis);  Able to provide informed consent; Located in the US, UK, Germany, France, Spain or Italy.  Care-partners will be defined as family members who provide disease-related support and unpaid care to child/adolescent patients  Exclusion Criteria:  Patient has FSGS or IgAN secondary to another condition; Patient has a history of malignancy other than adequately treated basal cell or squamous cell skin cancer; Patient has a co-existing glomerular disease (e.g., membranous nephropathy, lupus nephritis); Patient is currently participating in a kidney disease clinical trial, and potentially receiving active treatment as part of the trial.