How to use acme v2 to apply for a pan-domain name certificate in pve

[zwx08]

I want to apply for a wildcard domain certificate, but I don't know how to apply for it, I know it needs to be challenged with DNS, but I can't enter * in the domain name

 

[LnxBil]

How wildcard are we talking about? Normally domain wildcards are not allowed, just host wildcards. What is your usecase?