@leocg Thanks for replying, I frankly thought you are from the 'inside'. I just hope then that some developer will read it.
Sadly, the proposed approach with discards is practically unusable - I open a new tab, and...here we go again. Moreover, it conveniently forgets the setting of the "auto discardable" flag on a simple browser restart. which would mean I'd have to go there and fiddle with it everytime upon starting the browser. Unusable.
And as to the "solution" - very nice of them - people complain about eating too much RAM so, instead of optimizing our code, let's simply discard their data from RAM. And it won't help CPU usage either; on the contrary - each reload of a discarded tab costs quite a lot of CPU, and even more data. The folks at google seem to have lost the last bits of any brain they have had.
This "solution" very much reminds me of one folk song where the lyrics go like "to prevent people from stealing, let's cut off their arms; to prevent them from running away, let's cut off their legs." This "solution" is very much just that.