Is this a PWA? If so, sad. Efficient software is a thing of the past, also thanks to bloated and needlessly complex Ms dev tools and libraries or lack there of.
Outlook always was a bloated nasty app with complex steps for basic things and missing features and lacking public open standards for long time. Heck, even it's GAL browser is stuck in the early 90s. However MS business marketing did its trick. Businesses now rely on addins (which are a nightmare for programmers since Ms went .NET VSTO whose memory model just doesn't match COM at all. And now Ms says: sorry no support for local and native addins. Use that sorry excuse of web addins (always online, bad integration, bad deployment, lacking features).
Guess the current Outlook is here to stay for a long time.
ps if you want a better GAL in the current Outlook: https://wizardsoft.nl/products/companycontactsoutlook