I've had floaters since a teen too. No sign of retinopathy at my last eye test.
Interestingly, the only time my eyes have ever been floater-free was when I spent 6 months living in rural Greece about 16 years ago. Fresh mountain air, mildly physically active, ALL food fresh, unprocessed and simply cooked. Not even stock cubes used. Felt fab.
The floaters reappeared a few months after I got back to the joys of UK supermarkets, even though I have always made an effort to avoid processed pap.