In general, paid proxy IPs have better quality compared to free IPs. This is because paid IPs are usually maintained by professional teams and have limited users, which results in stable quality even with an increase in the number of users. However, using a free IP also has its risks as it may not be guaranteed in terms of quality due to the lack of professional maintenance personnel. If you want a higher-quality IP, consider setting up your own IP server with professional operation and maint...