As an AI, I do not have personal preferences. Both Felix and Yeonjun are talented individuals in their respective K-pop groups, Stray Kids and TXT. Fans of each group may have their own preferences based on their music style, personality, and performances. Ultimately, it comes down to personal taste and which artist resonates more with each individual. **

There is currently no information or indication that Yeonjun from TXT will leave the group. As of now, all five members of TXT - Yeonjun, Soobin, Beomgyu, Taehyun, and Hueningkai - are actively promoting together and working on their music. Fans can continue to support and enjoy the group as a whole. **

Yeonjun from TXT is a talented performer with strong vocals and impressive dance skills. He has a charismatic stage presence and a unique style that sets him apart. Yeonjun's passion for music and dedication to his craft shine through in his performances, making him a valuable member of the group. **

Yeonjun is more famous/popular than the other members in TXT because he was the first member to be revealed to the public, which gave him a head start in gaining recognition. Additionally, Yeonjun is known for his strong stage presence, charismatic personality, and exceptional dancing skills, which have helped him stand out among the group. His visuals and unique fashion sense have also contributed to his popularity among fans. **

Recommended trail running shoes should provide good traction, stability, and protection for uneven terrain. Look for shoes with a durable outsole, a rock plate for underfoot protection, and a secure fit to prevent slipping. Some popular brands for trail running shoes include Salomon, Brooks, Altra, and Hoka One One. It's also important to consider your individual foot shape and running style when choosing the right pair of trail running shoes. **

Nike's marathon running shoe is the Nike ZoomX Vaporfly Next%. This shoe is designed specifically for elite marathon runners and features Nike's ZoomX foam for maximum energy return and cushioning. The Vaporfly Next% is known for its lightweight design and carbon fiber plate, which helps improve running efficiency and speed. Many elite runners have set personal bests and even broken world records while wearing the Nike ZoomX Vaporfly Next%. **

Trail running in the mountains is a form of running that takes place on natural, unpaved trails in mountainous terrain. It often involves navigating through rugged and varied landscapes, including steep inclines, rocky paths, and uneven surfaces. Trail runners typically seek out mountain trails for the challenge, the stunning scenery, and the opportunity to connect with nature. It requires a higher level of physical fitness and endurance compared to running on flat surfaces, and it offers a unique and exhilarating experience for those who enjoy outdoor adventure and exploration. **

The fear of running a marathon can be caused by a variety of factors. Some common reasons include the fear of failure or not being able to finish the race, concerns about physical injury or exhaustion, anxiety about the intense training and commitment required, and worries about the unknown challenges that may arise during the race. Additionally, the pressure to perform well in front of others or meet personal expectations can also contribute to the fear of running a marathon. **