Not sure how long you've been using nostr but here's some more technical background... For the most part most clients don't have a gift button or anything but they have the ability to render gifs, pictures, movies. The key is that you need to post the link URL that ends with the file format ()

You can install nostr:nprofile1qqstuu6ccnl9q9yvejhuqt4zqhvqz30z2wyf4gu43k404p3hq37ggrspp4mhxue69uhkummn9ekx7mqpz4mhxue69uhk2er9dchxummnw3ezumrpdejqzyrhwden5te0dehhxarj9emkjmn964k6kt's website as a PWA and makes the process super simple