Being pretty bad doesn't mean they don't work of course, but when the best a product has to offer is clickops, they have missed the boat about 15 years ago.
Not sure about where ESXi is at lately on that level, but latest proxmox is really, really simple to start with if you've never used an hypervisor. You boot on the usb drive, press yes a few times, open the ip:port they give you and then you can click "create vm", next next next here is the iso to boot from and that's it.
Any tech user who has some vague knowledge about virtual machine or even run virtualbox on his computer could do it, and the more advanced fonctions (from proper backups and snapshot to multi node replication and load balancing) are absurdly simple to figure out in the UI.
I can't talk about the performance or quality of one against the other, but in pure difficulty to approach proxmox is doing very very good.
https://i0.wp.com/williamlam.com/wp-content/uploads/2023/04/...
https://www.reddit.com/media?url=https%3A%2F%2Fpreview.redd....
Next time try dSwitch (distributed switch) instead of vSwitch. It's designed for cluster use and much more powerful (and easier to manage across hosts). Manually managing vSwitches across a cluster sounds like torture.
I think it comes pretty close - close enough for probably most but the very largest of users, who, I think, should probably have tried to become hyperscalers themselves, instead of betting the farm and all the land around it on VMware (by Broadcom).
NSX allows you to create seperate clusters which hosts VM's which run the routing and firewalling functionality.
Some things (that were created before NSX) may have come from internet exchanges and hyperscalers, like openflow, P4, and FRR, but were really not missing parts that were required to do software defined networking. If anything, the only thing you really needed for SDN was Linux, and the only real distinction between SDN and non-SDN was hardwired ASICs in the network fabric (well, not hard-hardwired, but with limited programmability or 'secret' APIs).
There won’t be another year.