Are plant-based protein powders as effective as animal-based ones?

I am a 57 year old male with arteriosclerosis. At my doctors strong recommendation, I changed my diet significantly (Mediterranean) and started walking/jogging which resulted in a lot of weight loss over the last year. The lifestyle change is effective (and permanent) since the last labs showed big improvements in lipids, A1C, glucose, etc. My overall health is much better but I need to gain more muscle.

My caloric intake has averaged about 1700 calories a day because I have low daily restrictions on carbs, saturated fat, cholesterol, and sodium. I started weightlifting recently and need to increase my protein intake. Unfortunately, I am not supposed to eat any red meat, eggs, or shellfish. I take protein powder for an extra 20g of protein daily but I still only average 75g of protein in my diet each day. Whey protein powder contains cholesterol so I can't increase my intake. Are the plant-based high protein supplements worth a damn? Will I see similar results compared to animal-based protein powder? Thanks for all replies.