Daily logrotate intermittently reports "gzip: stdin: file size changed while zipping". Setting it to --verbose reveals that nginx is still writing to one of its logs. I'm adding delaycompress to its logrotate config file. Verbose report:

rotating pattern: /var/log/nginx/*.log  after 1 days (10 rotations)
empty log files are not rotated, old logs are removed
considering log /var/log/nginx/access.log
  log needs rotating
considering log /var/log/nginx/error.log
  log needs rotating
rotating log /var/log/nginx/access.log, log->rotateCount is 10
dateext suffix '-20210709'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
rotating log /var/log/nginx/error.log, log->rotateCount is 10
dateext suffix '-20210709'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
fscreate context set to unconfined_u:object_r:httpd_log_t:s0
renaming /var/log/nginx/access.log to /var/log/nginx/access.log-20210709
creating new /var/log/nginx/access.log mode = 0640 uid = 990 gid = 0
fscreate context set to unconfined_u:object_r:httpd_log_t:s0
renaming /var/log/nginx/error.log to /var/log/nginx/error.log-20210709
creating new /var/log/nginx/error.log mode = 0640 uid = 990 gid = 0
running postrotate script
compressing log with: /bin/gzip
set default create context to unconfined_u:object_r:httpd_log_t:s0
removing old log /var/log/nginx/access.log-20210628.gz
compressing log with: /bin/gzip
set default create context to unconfined_u:object_r:httpd_log_t:s0
gzip: stdin: file size changed while zipping
removing old log /var/log/nginx/error.log-20210628.gz