iPhone SE (3rd Gen) and iPhone (2020) ?

Here's the specs. The dimensions of the iPhone 7 and the 8/SE(2020)/SE(2022) are close enough that many accessories claim compatibility across all these models.

iPhone 7 - Technical Specifications

Size and Weight

* Height: 5.44 inches (138.3 mm)

* Width: 2.64 inches (67.1 mm)

* Depth: 0.28 inch (7.1 mm)

* Weight: 4.87 ounces (138 grams)

iPhone 8 - Technical Specifications

Size and Weight

* Height: 5.45 inches (138.4 mm)

* Width: 2.65 inches (67.3 mm)

* Depth: 0.29 inch (7.3 mm)

* Weight: 5.22 ounces (148 grams)

iPhone SE (2nd generation) - Technical Specifications

Size and Weight

* Width: 2.65 inches (67.3 mm)

* Height: 5.45 inches (138.4 mm)

* Depth: 0.29 inch (7.3 mm)

* Weight: 5.22 ounces (148 grams)

iPhone SE (3rd generation) - Technical Specifications

Size and Weight

* Width: 2.65 inches (67.3 mm)

* Height: 5.45 inches (138.4 mm)

* Depth: 0.29 inch (7.3 mm)

* Weight: 5.09 ounces (144 grams)

Not in terms of size. It's the exact (or close enough for most accessories) same external dimensions and button locations for the iPhone 7, 8, SE 2nd (2020), and SE 3rd (2022). Not all accessories mention the full compatibility.

The iPhone SE 3rd generation was released in March 2022.

Th iPhone SE 2nd generation was released in April, 2020.