Multiple hour interviews being more common now?

Ive had several interviews where they want me to come to their facility and spend 3 hours just interviewing. Always involving pretty difficult technical questions and scenarios asking me to basically do the job I'm applying for. Also like 5 rounds of interviews? At this point it's so exhausting and I feel like I'm getting nowhere. I end up spending a month talking to a company just to get rejected at the end of it, even if things go well at every stage. Applying for jobs is so horrible right now.