I use a small laptop Dell Latitude PC with 2 GB RAM and Windows 10 to run the IDE 1.8.19.
It allows me to remote upload UNO WiFi Rev2s and ESPs. OTA is still in the works.
My question is would this little Dell find running IDE 2. too taxing in relation to the 1.8 IDE?
It already runs fairly slow executing compiles and such and was I unsure if it would be up to
the task with the newer IDE.
...thougths appreciated...i know I can still try it...
I probably will otherwise I will not know right?
Just running the 1.8 is very taxing for this decade old little 'puter and
it requires a fair amount of patience waiting on it.....
Is IDE 2. more demanding of available memory/processor on host machine than 1.8.19?
Yes. On a common modern machine, I don't think there is a significant impact on usability (because the additional resources required by Arduino IDE 2.x are readily available and going unused with IDE 1.x). However, on a machine with lower specs the difference in resource usage can be quite impactful.
Then I'm afraid you probably won't have a good experience with using Arduino IDE 2.x on that machine.
But it is worth a try anyway.
When it comes to compilation, some users will actually notice that compilations take less time when using Arduino IDE 2.x. The reason for this is that Arduino IDE 2.x is more likely to use the cached objects from previous compilations. Arduino IDE 1.x also caches compilation output, but it clears the cache every time you exit the IDE. So the first compilation for a given board in Arduino IDE 1.x is always a full compilation, which takes more work for the compiler than a compilation that is able to reuse the cached core and libraries objects. Arduino IDE 2.x does not clear the cache on exit, so it will reuse cached objects even from previous IDE sessions.
However, on a low spec system, you might find that compilation is still slower when using Arduino IDE 2.x even though the compilation is more efficient. The reason for that would be that the compilation process is being starved for CPU or RAM resources by the increased resource usage of the IDE 2.x GUI application.