plants tend to do alright with the tie as long as you continue to adjust it as they grow bigger (so it's not too tight). However, if you want to take off, it will also be healthy, but the design may not stay as it continues to grow bigger.
Hello! I don't think thats a Blue Myrtle cactus instead I think you have a braided snake plant. Here's a picture of my blue Myrtle and a picture of what google says yours is.. Hope this helps! ๐ชด๐ฆ๐ต๐โ๏ธ