Don't mind welcome to country but it's way overdone. Was at an in house course at work and the HR girl started by thanking the traditional owners, etc. Not a fan of it in that instance I'm afraid.
This attitude is becoming increasingly common and, in fairness, is not necessarily the fault of FN people.
I know someone who works for a non-profit who had a particularly overzealous, what some might call PC Police, person who was in charge of a lot of the "socially progressive" aspect.
She used to tell me how militant this person was about using the "correct" terms and how this person had developed their RAP (Reconciliation Action Plan), including Acknowledgements of Country, etc.
I asked the person if this person had consulted with the local FN people about their thoughts on the RAP or what they could do, more broadly, to actually provide a benefit. Obviously, this person had simply taken it upon themselves without any consultation with external communities.
This person, who would be described as a "cisgender white woman", by some, also took it upon herself to implement several LGBTIQA+ initiatives and the likes, despite (at least as far as we could tell) herself not being actually LGBTIQA+ identifying.
So many people, myself included at times, are so fixated by doing what is "right" that they assume there is 1 homogenous "right" way to do things that they don't even consider options such as getting in touch with community representatives and actually engaging in a constructive dialogue.
And also, not surprisingly, unless your "HR girl" is indigenous, she would have no right to perform a "Welcome to Country", as that would be done (generally) by a representative of the lands/nation on which an event takes place, or (as Uncle Allan Madden has done at Souths games at Redfern and Accor, Gadigal/Eora and Wangal/Burramattagal/Dharug/Dharawal respectively) another indigenous person. An "Acknowledgement of Country" can be performed by anyone and pays respect to the traditional custodians of the land.
Both the Welcome to/Acknowledgement of Country are akin to the way the national anthem can be performed to open and/or close events by paying respect to the "country" on which an event takes place, or, in another sense, the way that prayers were traditionally used (and sometimes still are) to commence or close events.
tl;dr: Unless it's actually an FN person
demanding that certain ceremonies do or don't take place, don't blame FN peoples for all these ceremonies in their name.