Our service just migrated from Ubuntu 18.04 to 22.04 instance. But we found out that TCP6 connection with time_wait state increased significantly, in Ubuntu 22.04 they are around ~200 connections, while 18.04 only around ~30. The IPv6 already disabled.
Below is result of netstat -on | grep TIME_WAIT | grep tcp
tcp6 0 0 104.10.69.125:8088 104.10.87.104:3512 TIME_WAIT timewait (18.39/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.87.104:14494 TIME_WAIT timewait (58.43/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.211:29500 TIME_WAIT timewait (28.30/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.161:31354 TIME_WAIT timewait (22.40/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.88.42:4158 TIME_WAIT timewait (1.85/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.89.249:30044 TIME_WAIT timewait (58.36/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.161:36746 TIME_WAIT timewait (42.40/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.86.112:31398 TIME_WAIT timewait (52.75/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.87.104:49504 TIME_WAIT timewait (8.38/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.211:8924 TIME_WAIT timewait (58.33/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.86.112:47232 TIME_WAIT timewait (32.74/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.211:58356 TIME_WAIT timewait (18.29/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:42082 TIME_WAIT timewait (25.12/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.211:12178 TIME_WAIT timewait (38.31/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:58998 TIME_WAIT timewait (0.12/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.211:33574 TIME_WAIT timewait (8.28/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.89.249:39322 TIME_WAIT timewait (38.34/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:31632 TIME_WAIT timewait (30.12/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.88.42:43194 TIME_WAIT timewait (31.85/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.88.42:61360 TIME_WAIT timewait (21.85/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.88.42:60894 TIME_WAIT timewait (41.85/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.89.249:48172 TIME_WAIT timewait (8.31/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.89.249:57174 TIME_WAIT timewait (18.32/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:59010 TIME_WAIT timewait (5.12/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:43366 TIME_WAIT timewait (55.13/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.161:1208 TIME_WAIT timewait (12.40/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.86.112:33986 TIME_WAIT timewait (22.74/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:42310 TIME_WAIT timewait (10.12/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.89.249:26018 TIME_WAIT timewait (48.36/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.88.42:54292 TIME_WAIT timewait (11.85/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.87.104:42020 TIME_WAIT timewait (48.42/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.161:17216 TIME_WAIT timewait (52.41/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.161:33712 TIME_WAIT timewait (32.40/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.87.104:50312 TIME_WAIT timewait (28.40/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.86.112:55560 TIME_WAIT timewait (2.74/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.161:42136 TIME_WAIT timewait (2.40/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.86.112:6392 TIME_WAIT timewait (42.75/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.87.104:10380 TIME_WAIT timewait (38.41/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:31644 TIME_WAIT timewait (35.12/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:54026 TIME_WAIT timewait (45.12/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:42314 TIME_WAIT timewait (15.12/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.88.42:13068 TIME_WAIT timewait (51.85/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:54014 TIME_WAIT timewait (40.12/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.89.249:21674 TIME_WAIT timewait (28.33/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.91.211:22168 TIME_WAIT timewait (48.32/0/0)
tcp6 0 0 127.0.0.1:8088 127.0.0.1:42070 TIME_WAIT timewait (20.12/0/0)
tcp6 0 0 104.10.69.125:8088 104.10.86.112:29806 TIME_WAIT timewait (12.74/0/0)
is there something wrong or what might causing this issue.