Kind of. But not really anymore.
We are learning that non-HDL is highly important and probably as important as LDL in poor outcomes. So those triglycerides that don't mean anything on their own ( in the 150-500 range) result in a higher non-HDL and has been proven to increase atherosclerotic cardio vascular disease (ASCVD)
True. It's well proven but effect is minimal. It should be added to anyone that is only mildly elevated along with more lifestyle options. 3-6 months later get checked again. Still high? Go get a statin drug and swallow your pride. Most new studies are showing that you can't personally control a majority of your cholesterol profile. It might just happen in spite of your best efforts. Your effort might still be worth low dose drug vs no drug. Or low dose drug instead of high dose drug. So still try, but the reality is that if you are not obese and you are moderately active, you don't have a lot more control over your cholesterol (exception be damned! We are talking population level).
I see a lot of confusion in this thread? I am pretty swamped but if you have specific questions I'll answer things. This is NOT medical advice!