I am also running into this right now and am not happy. Any tax software I use, I need multiple years open at the same time to do the current year properly. This is fundamental tax preparation methodology. Having the final PDF from a prior year is inadequate and not a substitute for the software. Starting this year, having 2023 Home & Business open prevents the 2022 version from opening which is ridiculous. I paid for 2022 so I should be able to open the software however and whenever I want, regardless of what other programs are currently running, including those from Intuit.
Not allowing more than one year of TurboTax Desktop open at the same time is a serious flaw that I hope is fixed soon.
