I don't know. I briefly used IPsec when I stopped using OpenVPN and I was looking for alternatives. The setup for IPsec on the server was slightly annoying. I used a Github project that sets up everything for me but the script didn't do everything.
And I have observed(from just using IPsec and wireguard on my phone) that wireguard is quite good(maybe even better) than IPsec at not annihilating internet bandwidth.
I was using openvpn and then switched to wireguard because openvpn was consuming a lot of power on my phone.
Why would I want to use Ipsec?