One SVG becomes one emoji asset
Start with a logo mark, check, arrow or other symbol that still makes sense beside a line of text. Import the SVG, inspect its static appearance, then add a short motion if that helps the meaning. A detailed sticker illustration will not automatically become a readable emoji.
The download is a TGS file. To use it as a custom emoji, it must be added to a custom emoji pack. Exporting the file alone does not publish a pack or produce a Telegram custom emoji ID.