Recurring Outlook issue - stuck on "Loading Profile" on Windows RDS servers.

Our first support request about this issue was in September 2023, but it has been more frequent over the past few months and weeks. Randomly we will have users report that Outlook will be stuck on loading profile. It's usually more than one user with the issue but it doesn't usually happen for everyone on that RDS host. Out support techs will always reboot that RDS host to resolve the issue.

It seems like the same exact issue reported in the community post linked below - but that was in the context of an Azure VDI environment.
https://techcommunity.microsoft.com/discussions/fslogix/azure-vdi---outlook-stuck-on-loading-profile/4267498

Some additional info:
- There are two RDS hosts, both running Windows Server 2019 Standard
- There will be around 20-25 users on each RDS host during peak hours, but this issue can occur at any time of day
- FSLogix is on latest version 2210 hotfix 4
- Physical server infrastructure is Dell PowerEdge hosts running ESXi (with vCenter), connected to Dell SCv3020 SAN for storage.

Any input is appreciated! We are also pursuing Microsoft support for this issue but from our experience it can take awhile to make progress with them on anything related to on-prem servers anymore.