nostr:nprofile1qqsdxacwlxhtwtpnxtucfhn968unsndlneel0qdnm30ws25rwf4axjcm2xtp9 a gif is a url in a plain text note, so animating it is a client feature. what are you seeing freeze?

Yakihonne has had them for ages... https://media0.giphy.com/media/xlSZ0f0f5ukE0/giphy.gif?cid=4ea4f8d53768p0qdqjk4tyjx3499h5l8aa54j9t41lvgwsbj&ep=v1_gifs_search&rid=giphy.gif&ct=g