We have a lot of http agent items. About 6000 items per each zabbix proxy.
After restarting zabbix-proxy, everything works fine at first. But after a while, http agent stops collecting data.
Wait time for all items is 3 sec (as default global). Check period is 5m. Method GET for all.
In Zabbix 6.4 version thath worked without problems

curl -V
curl 8.10.1 (x86_64-pc-linux-gnu) libcurl/8.10.1 GnuTLS/3.7.9 zlib/1.2.13 brotli/1.0.9 zstd/1.5.4 libidn2/2.3.3 libpsl/0.21.2 libssh2/1.10.0 nghttp2/1.52.0 ngtcp2/1.6.0 nghttp3/1.4.0 librtmp/2.3 OpenLDAP/2.5.13