I would not equate it with some of recent additions like tipping for takeaway food or coffee while facing the employee and payment screen with default tip included

Tipping (or not) housekeepng has been discussed here a number of times over the years - it is your choice and you are not pressured into that. I try to tip as minimum pay is not enough, the system of pay is not changing any time soon and they usually do a good job. ymmv.