In the last few months I switched all three PC-based machines on my home LAN to Windows LTSC IoT, buying a license from a Romanian official outlet. You have to call Microsoft in the US to talk to a robot in order to activate each copy, but the license is perma-activated after that, but linked to the installation hardware, which I can live with.
It's not all a picnic - getting the Microsoft store into LTSC requires a special GitHub repo, and it's surprising how many things you need the store for, particularly for laptops. Also, there are a bunch of other rough edges that don't exist in Windows 10 Pro and Home. The main one is that IoT identifies as less than V2022 of Windows, which can make certain software impossible to install.
But it has been worth the extra effort and time, to get out from under the shadow of the October withdrawal.
Incidentally, you can't stop Windows updates with LTSC IoT, nor can you delay them any longer than in regular versions. The main difference is one extra control method (which doesn't extend the delay period) + the updates are far less frequent.