Eggs Florentine with Tarragon Hollandaise

Name: Eggs Florentine with Tarragon Hollandaise
Ingredients: 16 Tbs. (2 sticks) (8 oz./250 g) unsalted butter; 1 whole egg plus 2 egg yolks; 1 Tbs. fresh lemon juice; 1/8 tsp. cayenne pepper; 2 Tbs. chopped fresh tarragon; 1 Tbs. water; Kosher salt and freshly ground black pepper; 4 thick-cut bacon slices, about 4 oz. (125 g) total; 8 oz. (250 g) Swiss or rainbow chard, stems removed and leaves coarsely chopped; Juice of 1/2 lemon; 2 Tbs. unsalted butter; 2 English muffins, halved; 4 eggs; Cayenne pepper; Flaky sea salt; Microgreens or minced fresh chives for garnish