During a QMP board, how much weight will the board give to a permanent GOMOR for disrespecting a company commander?

Regardless of your view on it, it's a GOMOR in your diciplinary folder of your AMHRR.

From the view of the board, if it was something along a 'slight' or other activity deserving of a slap on the wrist, it would have been done so. For whatever reason the conduct rose to the level that a general officer formally reprimanded you and decided that it shouldn't be in your restricted folder.

Are you assured of being denied continued service because of it? No, but I would start working on your post-military backup plan now if you haven't already. It's impossible to tell you how the QMP board is going to react to it specifically.

If you're a "stud", then it might be viewed as a blemish that you could overcome if the content of the GOMOR is not that damning or if there are strong mitigating circumstances. However, members of the board could also see that as something a SFC with 11 years TIS shouldn't have done and that you're lacking in the qualities of a senior NCO in your present grade. It's a dice roll and along the lines of "how will a DUI affect me?"*

Either you already received a notification from HRC, or should be receiving one soon, because they review the AMHRRs each month for "QMP triggering" items (your "Code 13" notification).

I suggest you consult with legal assistance about advice on your options. They can review the GOMOR and advise you if there is a possibility of a GOMOR appeal if it seems unjust and/or the possible actions you can take in responding to HRC's notification (when you get it if you haven't already).

The 'old' QMP process allowed you to appeal a denial of continued service and you would get a second bite at the apple, but since the change in 2021, you can only request the decision be reconsidered if the triggering document (in your case, the GOMOR) was removed or some error with it was discovered after the QMP decision was made.
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* https://www.rallypoint.com/answers/i-got-a-dui-while-on-leave-what-can-i-expect?urlhash=8135939

SFC (Join to see), if a GOMOR has been issued due to performance concerns in your current grade, it renders you eligible for consideration in the QMP and will prompt action at HRC. To be candid, if your command opted not to include the GOMOR in your restricted file, the language within the GOMOR is tailored more for the review board's benefit than for yours. Consequently, it's crucial to scrutinize the GOMOR's language regarding your future potential, as this conveys the message your command is relaying to the board. Additionally, the board will take note if you were ever barred from reenlistment or if you received a Relief for Cause NCOER in connection with the circumstances leading to the GOMOR. These factors compound the impact of the GOMOR (add weight) and contribute to the narrative sent to the board, indicating that the command believes you do not meet the retention standards for continued service. If there were no reenlistment bar or Relief for Cause NCOER, the board will heavily rely on the GOMOR's language regarding potential, coupled with your performance file. The board will provide a deadline for you to submit any matters of mitigation or extenuation for their consideration. Typically, this involves a memorandum (in a 25-50 format) from the SM under review and letters of endorsement from other individuals. If I were in your position, I would prioritize securing letters from both past and recent FIELD-GRADE (emphasis added) commanders who can provide specific insights into my potential during the periods they knew me. Lastly, remember, that the needs of the Army based on your MOS and Rank, et al., plays a role in the board's consideration and the board will be informed of those needs via an MOI from DA.

Oofdah. Did this GOMOR come with a Negative statement (or more) within your most recent NCOER?

Not knowing what other consequences you faced for this, I would say that your odds of surviving the QMP are fair. Depending on how the GOMOR is worded and if it's in the open or restricted part of your file. If you've been stellar prior to this, with no Relief for Cause NCOER...I'd say your chances are above fair to survive.

However, I would still recommend you get the back-plan ready to be activated. Update that resume.