My wife is WFH and I’m currently unemployed so it’s fun to be a little desk toy while she’s in meetings. The only issue is she uses a standing desk so I still haven’t figured out a great way for my face to reach her clit in a position that I can last a long time for.
Any tips on how to make the ergonomics work?

As previously mentioned get a “milking stool” or one of those little chairs that kids sit in. Either should get your head at the same height as her pussy. To secure yourself from falling stick 2 fingers in her ass as you are licking away at her clit. Remember to also spend some time just plunging your tongue down her birth canal.