The recommended answer is very vague. At present, there are indeed many trademarks with "GT", but no matter what kind of trademark is protected, according to the trademark examination rules, a trademark consists of one or two foreign letters with abnormal fonts, which has no meaning and obviously different glyphs, making the overall difference between trademarks obvious, making it difficult for the relevant public to misunderstand the source of goods or services and being regarded as dissimilar. So as long as your "GT" trademark design is not similar to others, the difference is obvious.