What is the aesthetic font called?

Most often it's full-width text (Ｌｉｋｅｔｈｉｓ), sometimes called vaporwave text.

How do I add stars or hearts around my name?

Open 'Add a frame' above the styles and pick one. It applies to every style at once.

Aesthetic Text Generator — Ｖａｐｏｒｗａｖｅ, W i d e and Framed

Q: What is the aesthetic font called?

Most often it's full-width text (Ｌｉｋｅ ｔｈｉｓ), sometimes called vaporwave text.

Where Ｖａｐｏｒｗａｖｅ comes from

Full-width letters exist so that Latin letters line up in the same grid as Chinese and Japanese characters, each taking a full square. Vaporwave art in the 2010s borrowed them for their stretched, retro look. They are among the best-supported fancy characters, since every phone sold in East Asia needs them. Open “Add a frame” above to wrap any style in ★彡, ♡, ✧･ﾟ: or a cartouche.

Questions

What is the aesthetic font called?: Most often it's full-width text (Ｌｉｋｅｔｈｉｓ), sometimes called vaporwave text.
How do I add stars or hearts around my name?: Open 'Add a frame' above the styles and pick one. It applies to every style at once.